估算：49×101 196×39 203×38 396×102 89×92 98×69 6、05-0、18×4的简便计算
\u5b50\u7f51\u63a9\u7801\u5212\u5206\u697c\u4e0a\u7684,\u9898\u76ee\u662f4000\u53f0\u673a\u5668,\u5e73\u5747\u5206\u5e03\u572813\u4e2a\u4e0d\u540c\u7684\u5730\u70b9,\u4e5f\u5c31\u662f\u8bf4\u6bcf\u4e2a\u5730\u70b9\u53ea\u80fd\u5206\u914d\u5230300\u591a\u53f0\u673a\u5668,\u6240\u4ee5\u4e0d\u9700\u8981\u6bcf\u4e2a\u5b50\u7f51\u90fd\u652f\u63014000\u591a\u53f0\u673a\u5668.300\u591a\u53f0\u673a\u5668,\u5c31\u9700\u8981\u4e3b\u673a\u53f7\u662f9\u4f4d\u5c31\u884c\u4e86.2\u76849\u6b21\u65b9=512\u4e2a\u5730\u5740,\u8db3\u591f\u7528,2\u76848\u6b21\u65b9=256\u4e2a\u5730\u5740,\u4e0d\u591f\u7528.
B\u7c7b\u5730\u5740\u4e2d\u524d16\u4f4d\u4e0d\u53d8,\u540e16\u4f4d\u4e2d,9\u4f4d\u7528\u6765\u4f5c\u4e3b\u673a\u53f7,\u8fd8\u67097\u4f4d\u7528\u4f5c\u5b50\u7f51\u5212\u5206,\u4e00\u5171\u53ef\u4ee5\u5212\u5206\u51fa128\u4e2a\u5b50\u7f51,\u5982\u4e0b:
129.25.0.0/23 IP\u8303\u56f4\u662f 129.25.0.1 \u5230 129.25.1.254
129.25.2.0/23 IP\u8303\u56f4\u662f 129.25.2.1 \u5230 129.25.3.254
129.25.4.0/23 IP\u8303\u56f4\u662f 129.25.4.1 \u5230 129.25.5.254
129.25.6.0/23 IP\u8303\u56f4\u662f 129.25.6.1 \u5230 129.25.7.254
129.25.8.0/23 IP\u8303\u56f4\u662f 129.25.8.1 \u5230 129.25.9.254
129.25.10.0/23 IP\u8303\u56f4\u662f 129.25.10.1 \u5230 129.25.11.254
129.25.12.0/23 IP\u8303\u56f4\u662f 129.25.12.1 \u5230 129.25.13.254
129.25.14.0/23 IP\u8303\u56f4\u662f 129.25.14.1 \u5230 129.25.15.254
129.25.16.0/23 IP\u8303\u56f4\u662f 129.25.16.1 \u5230 129.25.17.254
129.25.18.0/23 IP\u8303\u56f4\u662f 129.25.18.1 \u5230 129.25.19.254
129.25.20.0/23 IP\u8303\u56f4\u662f 129.25.20.1 \u5230 129.25.21.254
129.25.22.0/23 IP\u8303\u56f4\u662f 129.25.22.1 \u5230 129.25.23.254
129.25.24.0/23 IP\u8303\u56f4\u662f 129.25.24.1 \u5230 129.25.25.254
129.25.26.0/23 IP\u8303\u56f4\u662f 129.25.26.1 \u5230 129.25.27.254
129.25.28.0/23 IP\u8303\u56f4\u662f 129.25.28.1 \u5230 129.25.29.254
129.25.30.0/23 IP\u8303\u56f4\u662f 129.25.30.1 \u5230 129.25.31.254
129.25.32.0/23 IP\u8303\u56f4\u662f 129.25.32.1 \u5230 129.25.33.254
129.25.34.0/23 IP\u8303\u56f4\u662f 129.25.34.1 \u5230 129.25.35.254
129.25.36.0/23 IP\u8303\u56f4\u662f 129.25.36.1 \u5230 129.25.37.254
129.25.38.0/23 IP\u8303\u56f4\u662f 129.25.38.1 \u5230 129.25.39.254
129.25.40.0/23 IP\u8303\u56f4\u662f 129.25.40.1 \u5230 129.25.41.254
129.25.42.0/23 IP\u8303\u56f4\u662f 129.25.42.1 \u5230 129.25.43.254
129.25.44.0/23 IP\u8303\u56f4\u662f 129.25.44.1 \u5230 129.25.45.254
129.25.46.0/23 IP\u8303\u56f4\u662f 129.25.46.1 \u5230 129.25.47.254
129.25.48.0/23 IP\u8303\u56f4\u662f 129.25.48.1 \u5230 129.25.49.254
129.25.50.0/23 IP\u8303\u56f4\u662f 129.25.50.1 \u5230 129.25.51.254
129.25.52.0/23 IP\u8303\u56f4\u662f 129.25.52.1 \u5230 129.25.53.254
129.25.54.0/23 IP\u8303\u56f4\u662f 129.25.54.1 \u5230 129.25.55.254
129.25.56.0/23 IP\u8303\u56f4\u662f 129.25.56.1 \u5230 129.25.57.254
129.25.58.0/23 IP\u8303\u56f4\u662f 129.25.58.1 \u5230 129.25.59.254
129.25.60.0/23 IP\u8303\u56f4\u662f 129.25.60.1 \u5230 129.25.61.254
129.25.62.0/23 IP\u8303\u56f4\u662f 129.25.62.1 \u5230 129.25.63.254
129.25.64.0/23 IP\u8303\u56f4\u662f 129.25.64.1 \u5230 129.25.65.254
129.25.66.0/23 IP\u8303\u56f4\u662f 129.25.66.1 \u5230 129.25.67.254
129.25.68.0/23 IP\u8303\u56f4\u662f 129.25.68.1 \u5230 129.25.69.254
129.25.70.0/23 IP\u8303\u56f4\u662f 129.25.70.1 \u5230 129.25.71.254
129.25.72.0/23 IP\u8303\u56f4\u662f 129.25.72.1 \u5230 129.25.73.254
129.25.74.0/23 IP\u8303\u56f4\u662f 129.25.74.1 \u5230 129.25.75.254
129.25.76.0/23 IP\u8303\u56f4\u662f 129.25.76.1 \u5230 129.25.77.254
129.25.78.0/23 IP\u8303\u56f4\u662f 129.25.78.1 \u5230 129.25.79.254
129.25.80.0/23 IP\u8303\u56f4\u662f 129.25.80.1 \u5230 129.25.81.254
129.25.82.0/23 IP\u8303\u56f4\u662f 129.25.82.1 \u5230 129.25.83.254
129.25.84.0/23 IP\u8303\u56f4\u662f 129.25.84.1 \u5230 129.25.85.254
129.25.86.0/23 IP\u8303\u56f4\u662f 129.25.86.1 \u5230 129.25.87.254
129.25.88.0/23 IP\u8303\u56f4\u662f 129.25.88.1 \u5230 129.25.89.254
129.25.90.0/23 IP\u8303\u56f4\u662f 129.25.90.1 \u5230 129.25.91.254
129.25.92.0/23 IP\u8303\u56f4\u662f 129.25.92.1 \u5230 129.25.93.254
129.25.94.0/23 IP\u8303\u56f4\u662f 129.25.94.1 \u5230 129.25.95.254
129.25.96.0/23 IP\u8303\u56f4\u662f 129.25.96.1 \u5230 129.25.97.254
129.25.98.0/23 IP\u8303\u56f4\u662f 129.25.98.1 \u5230 129.25.99.254
129.25.100.0/23 IP\u8303\u56f4\u662f 129.25.100.1 \u5230 129.25.101.254
129.25.102.0/23 IP\u8303\u56f4\u662f 129.25.102.1 \u5230 129.25.103.254
129.25.104.0/23 IP\u8303\u56f4\u662f 129.25.104.1 \u5230 129.25.105.254
129.25.106.0/23 IP\u8303\u56f4\u662f 129.25.106.1 \u5230 129.25.107.254
129.25.108.0/23 IP\u8303\u56f4\u662f 129.25.108.1 \u5230 129.25.109.254
129.25.110.0/23 IP\u8303\u56f4\u662f 129.25.110.1 \u5230 129.25.111.254
129.25.112.0/23 IP\u8303\u56f4\u662f 129.25.112.1 \u5230 129.25.113.254
129.25.114.0/23 IP\u8303\u56f4\u662f 129.25.114.1 \u5230 129.25.115.254
129.25.116.0/23 IP\u8303\u56f4\u662f 129.25.116.1 \u5230 129.25.117.254
129.25.118.0/23 IP\u8303\u56f4\u662f 129.25.118.1 \u5230 129.25.119.254
129.25.120.0/23 IP\u8303\u56f4\u662f 129.25.120.1 \u5230 129.25.121.254
129.25.122.0/23 IP\u8303\u56f4\u662f 129.25.122.1 \u5230 129.25.123.254
129.25.124.0/23 IP\u8303\u56f4\u662f 129.25.124.1 \u5230 129.25.125.254
129.25.126.0/23 IP\u8303\u56f4\u662f 129.25.126.1 \u5230 129.25.127.254
129.25.128.0/23 IP\u8303\u56f4\u662f 129.25.128.1 \u5230 129.25.129.254
129.25.130.0/23 IP\u8303\u56f4\u662f 129.25.130.1 \u5230 129.25.131.254
129.25.132.0/23 IP\u8303\u56f4\u662f 129.25.132.1 \u5230 129.25.133.254
129.25.134.0/23 IP\u8303\u56f4\u662f 129.25.134.1 \u5230 129.25.135.254
129.25.136.0/23 IP\u8303\u56f4\u662f 129.25.136.1 \u5230 129.25.137.254
129.25.138.0/23 IP\u8303\u56f4\u662f 129.25.138.1 \u5230 129.25.139.254
129.25.140.0/23 IP\u8303\u56f4\u662f 129.25.140.1 \u5230 129.25.141.254
129.25.142.0/23 IP\u8303\u56f4\u662f 129.25.142.1 \u5230 129.25.143.254
129.25.144.0/23 IP\u8303\u56f4\u662f 129.25.144.1 \u5230 129.25.145.254
129.25.146.0/23 IP\u8303\u56f4\u662f 129.25.146.1 \u5230 129.25.147.254
129.25.148.0/23 IP\u8303\u56f4\u662f 129.25.148.1 \u5230 129.25.149.254
129.25.150.0/23 IP\u8303\u56f4\u662f 129.25.150.1 \u5230 129.25.151.254
129.25.152.0/23 IP\u8303\u56f4\u662f 129.25.152.1 \u5230 129.25.153.254
129.25.154.0/23 IP\u8303\u56f4\u662f 129.25.154.1 \u5230 129.25.155.254
129.25.156.0/23 IP\u8303\u56f4\u662f 129.25.156.1 \u5230 129.25.157.254
129.25.158.0/23 IP\u8303\u56f4\u662f 129.25.158.1 \u5230 129.25.159.254
129.25.160.0/23 IP\u8303\u56f4\u662f 129.25.160.1 \u5230 129.25.161.254
129.25.162.0/23 IP\u8303\u56f4\u662f 129.25.162.1 \u5230 129.25.163.254
129.25.164.0/23 IP\u8303\u56f4\u662f 129.25.164.1 \u5230 129.25.165.254
129.25.166.0/23 IP\u8303\u56f4\u662f 129.25.166.1 \u5230 129.25.167.254
129.25.168.0/23 IP\u8303\u56f4\u662f 129.25.168.1 \u5230 129.25.169.254
129.25.170.0/23 IP\u8303\u56f4\u662f 129.25.170.1 \u5230 129.25.171.254
129.25.172.0/23 IP\u8303\u56f4\u662f 129.25.172.1 \u5230 129.25.173.254
129.25.174.0/23 IP\u8303\u56f4\u662f 129.25.174.1 \u5230 129.25.175.254
129.25.176.0/23 IP\u8303\u56f4\u662f 129.25.176.1 \u5230 129.25.177.254
129.25.178.0/23 IP\u8303\u56f4\u662f 129.25.178.1 \u5230 129.25.179.254
129.25.180.0/23 IP\u8303\u56f4\u662f 129.25.180.1 \u5230 129.25.181.254
129.25.182.0/23 IP\u8303\u56f4\u662f 129.25.182.1 \u5230 129.25.183.254
129.25.184.0/23 IP\u8303\u56f4\u662f 129.25.184.1 \u5230 129.25.185.254
129.25.186.0/23 IP\u8303\u56f4\u662f 129.25.186.1 \u5230 129.25.187.254
129.25.188.0/23 IP\u8303\u56f4\u662f 129.25.188.1 \u5230 129.25.189.254
129.25.190.0/23 IP\u8303\u56f4\u662f 129.25.190.1 \u5230 129.25.191.254
129.25.192.0/23 IP\u8303\u56f4\u662f 129.25.192.1 \u5230 129.25.193.254
129.25.194.0/23 IP\u8303\u56f4\u662f 129.25.194.1 \u5230 129.25.195.254
129.25.196.0/23 IP\u8303\u56f4\u662f 129.25.196.1 \u5230 129.25.197.254
129.25.198.0/23 IP\u8303\u56f4\u662f 129.25.198.1 \u5230 129.25.199.254
129.25.200.0/23 IP\u8303\u56f4\u662f 129.25.200.1 \u5230 129.25.201.254
129.25.202.0/23 IP\u8303\u56f4\u662f 129.25.202.1 \u5230 129.25.203.254
129.25.204.0/23 IP\u8303\u56f4\u662f 129.25.204.1 \u5230 129.25.205.254
129.25.206.0/23 IP\u8303\u56f4\u662f 129.25.206.1 \u5230 129.25.207.254
129.25.208.0/23 IP\u8303\u56f4\u662f 129.25.208.1 \u5230 129.25.209.254
129.25.210.0/23 IP\u8303\u56f4\u662f 129.25.210.1 \u5230 129.25.211.254
129.25.212.0/23 IP\u8303\u56f4\u662f 129.25.212.1 \u5230 129.25.213.254
129.25.214.0/23 IP\u8303\u56f4\u662f 129.25.214.1 \u5230 129.25.215.254
129.25.216.0/23 IP\u8303\u56f4\u662f 129.25.216.1 \u5230 129.25.217.254
129.25.218.0/23 IP\u8303\u56f4\u662f 129.25.218.1 \u5230 129.25.219.254
129.25.220.0/23 IP\u8303\u56f4\u662f 129.25.220.1 \u5230 129.25.221.254
129.25.222.0/23 IP\u8303\u56f4\u662f 129.25.222.1 \u5230 129.25.223.254
129.25.224.0/23 IP\u8303\u56f4\u662f 129.25.224.1 \u5230 129.25.225.254
129.25.226.0/23 IP\u8303\u56f4\u662f 129.25.226.1 \u5230 129.25.227.254
129.25.228.0/23 IP\u8303\u56f4\u662f 129.25.228.1 \u5230 129.25.229.254
129.25.230.0/23 IP\u8303\u56f4\u662f 129.25.230.1 \u5230 129.25.231.254
129.25.232.0/23 IP\u8303\u56f4\u662f 129.25.232.1 \u5230 129.25.233.254
129.25.234.0/23 IP\u8303\u56f4\u662f 129.25.234.1 \u5230 129.25.235.254
129.25.236.0/23 IP\u8303\u56f4\u662f 129.25.236.1 \u5230 129.25.237.254
129.25.238.0/23 IP\u8303\u56f4\u662f 129.25.238.1 \u5230 129.25.239.254
129.25.240.0/23 IP\u8303\u56f4\u662f 129.25.240.1 \u5230 129.25.241.254
129.25.242.0/23 IP\u8303\u56f4\u662f 129.25.242.1 \u5230 129.25.243.254
129.25.244.0/23 IP\u8303\u56f4\u662f 129.25.244.1 \u5230 129.25.245.254
129.25.246.0/23 IP\u8303\u56f4\u662f 129.25.246.1 \u5230 129.25.247.254
129.25.248.0/23 IP\u8303\u56f4\u662f 129.25.248.1 \u5230 129.25.249.254
129.25.250.0/23 IP\u8303\u56f4\u662f 129.25.250.1 \u5230 129.25.251.254
129.25.252.0/23 IP\u8303\u56f4\u662f 129.25.252.1 \u5230 129.25.253.254
129.25.254.0/23 IP\u8303\u56f4\u662f 129.25.254.1 \u5230 129.25.255.254
\u9009\u4e0a\u9762\u7684128\u4e2a\u5b50\u7f51\u4e2d\u768413\u4e2a\u5c31\u53ef\u4ee5\u4e86.
\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60
300\u00f7125\u00f78=300\u00f7(125\u00d78)=300\u00f71000=0.3
396-96-172-28 =(396-96)-(172+28)= 300-200 = 100
125*24 = 125*8*3 = 1000*3 = 3000
26*15 = (20+6)*15 = 20*15 + 6*15 = 300+90 =390
25*99*4 = 25*4*99 = 100*99 = 9900
250*32 = 250*4*8 = 1000*8 = 8000
(98+98+98+98)*25 = 4*98*25 = 4*25*98 = 100*98 = 9800
472*5*20 = 472*(5*20)= 472*100 = 47200
125*(8+800)= 125*8+125*800 = 1000 + 100000 = 101000
129*38+38*872-38 = 38*(129+872-1)=38*1000=38000
18*8*125*5 = 18*5*(125*8)=90*1000 = 9000
1384-(450+384) = 1384-384-450 = 1000-450 = 550
37*99 = 37*(100-1)= 37*100 - 37 = 3700-37=3663
82*98 = 82*(100-2)=8200- 164 = 8036
202*28 = (200+2)*28 = 200*28+2*28 =5600+56 =5656
76*105 = 76*100 + 76*5 = 7600+380 = 7980
82*14+18*14 = 14*(82+18)=14*100=1400
69*99+69 = 69*(99+1)=69*100 = 6900
49\u00d7102-2\u00d749 125\u00d776\u00d78 8.33-2.43-4.57
103\u00d732 6.7+ 2.63+4.3 41000\u00f78\u00f7125
5824\u00f78\u00d7(85-78) 840\u00f728+70\u00d718
40\u4e5813\u4e5825 480\u9664\u4ee532 120\u9664\u4ee55\u9664\u4ee54
38\u4e58201 45\u4e5897-7\u4e5845 21\u4e5841\u51cf21
35\u4e5822\u52a035\u4e5836+35\u4e5822 44\u4e58198 125\u4e5825\u4e588\u4e5840
95\u4e5853\u52a053 99\u4e58125 45\u4e58101\u51cf45
138-43-57-38
1.498+397
2.502-399
3.63-45-55+137
4.125\u00d756
5.302\u00d799+302
6.145\u00d789+145\u00d721
\u3002
1\u3001475+254+361 2\u3001615+475+125 3\u3001860-168+159
4\u3001465+358-27 5\u3001647-(85+265) 6\u3001476+(65-29)
7\u3001154\u00d78\u00f716 8\u3001400\u00f725\u00d775 9\u300116\u00d725\u00f716\u00d725
10\u3001552\u00f769\u00d78 11\u3001600-120\u00f710 12\u3001(600-120)\u00f710
13\u3001(466-25\u00d74)\u00f76 14\u3001(43+32)\u00f7(357-352)
15\u3001138+(27+48)\u00f725 16\u300156\u00d719+25\u00d78
\u4e8c\u3001\u7528\u7b80\u4fbf\u65b9\u6cd5\u8ba1\u7b97\u3002
1\u3001368+2649+1351 2\u3001 89+101+111
3\u300124+127+476+573 4\u3001400-273-127
5\u3001327+(96-127) 6\u300172\u00d798
7\u3001442-103-142 8\u3001999+99+9
9\u300167\u00d75\u00d72 10\u300125\u00d7(78\u00d74)
11\u300172\u00d7125 12\u30019000\u00f7125\u00f78
13\u3001400\u00f725 14\u300125\u00d736
15\u3001103\u00d727 16\u300176\u00d7102
17\u30013600\u00f725\u00f74 18\u300199\u00d735
19\u3001(25+12)\u00d74 20\u300156\u00d727+27\u00d744
21\u300156\u00d799+56 22\u3001125\u00d725\u00d78\u00d74
23\u300125\u00d732\u00d7125 24\u3001125\u00d764
(1)(78+61)+39 (2)700-82-18
(3)348+163+242+410+537
(4)125\u00d747-47\u00d725
(5)201\u00d7316
(6)374-205+226-95
(7)3000-999
(8)997\u00d77+21 (9)87\u00d7470+870\u00d753
(10)(55+55+55+55\u00d75)\u00d7125
(11)125\u00d7(8+40)\u00d725 (12)99+49\u00d799
(13)264\u00d797+4\u00d7264
(14)454+999\u00d7999+545
(15)9999\u00d736+6666\u00d73\u00d732
(16)124\u00d738+65\u00d7124+76\u00d7110-76\u00d77
(17)62\u00d74+44\u00d75+5\u00d718
(18)3400-62\u00d734-38\u00d720-38\u00d714
(19)1992\u00d719911991-1991\u00d719901990
396-96-172-28 =(396-96)-(172+28)= 300-200 = 100
125*24 = 125*8*3 = 1000*3 = 3000
\u56db\u5e74\u7ea7\u6570\u5b669\u5957\u8ba1\u7b97\u9898
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u4e00
\u4e00\u3001\u8bf7\u4f60\u53e3\u7b97\u3002
0.38+0.6= 155-(60-55)= 64.2+5.7= 643-27-73=
0.97-0.09= 12.8-9.86= 17.08-4.58 = 9900\u00f725\u00f74=
3.5+0.6= 5-0.15= 4.35+5.35= 99\u00d755+55=
0.81+0.09= 0\u00f778= 60-20\u00f75= 47\u00d725\u00d74=
0.5+0.5= 0.5-0.5= 0.5\u00d70.5= 0.5\u00f71=
\u4e8c\u3001\u8bf7\u7528\u9012\u7b49\u5f0f\u8ba1\u7b97
72-9\u00d78\u00f76 3600\u00f7(20\u00f75) (450+27) \u00f7(21-18)
86.7-(14.8-3.3 ) 70-(12.87+0.75) 84.6-(26.3-8.3)
\u4e09\u3001\u4f60\u80fd\u60f3\u51fa\u7b80\u4fbf\u65b9\u6cd5\u6765\u8ba1\u7b97\u4e0b\u9762\u5404\u9898\u5417?
87-3.12-0.88 6.74+12.62+24.38+3.26 88\u00d7125
37.65-(7.65+5.4) 34\u00d77+65\u00d77+7 38\u00d738+38\u00d762
\u56db.\u7528\u5c0f\u6570\u8ba1\u7b97\u3002
6\u7c7345\u5398\u7c73+3\u7c735\u5206\u7c73 10\u5343\u514b-3\u5343\u514b700\u514b
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u4e8c
1\u3001\u53e3\u7b97
1.3-0.8= 630\u00f790= 6-0.37= 0\u00d7100+100=
60\u00d70= 2.73+0.27= 0.75+0.3= 5\u00d79+1=
4.3\u00f71000= 0.69+1.1= 300\u00d718= 7+7\u00d79=
2\u3001\u8ba1\u7b97\u4e0b\u9762\u5404\u9898\uff0c\u80fd\u7b80\u4fbf\u7684\u8981\u7b80\u7b97\u3002
49\u00d7102-2\u00d749 125\u00d778\u00d78 8.33-2.43-4.57
99\u00d737 6.7-2.63+3.3-3.37 41000\u00f7(41\u00d75)
3.5\u00d772+6.5\u00d728 5824\u00f78\u00d7(85-78) 840\u00f728+70\u00d718
3\u3001\u6839\u636e\u8981\u6c42\u7ed9\u4e0b\u9762\u7b97\u5f0f\u6dfb\u62ec\u53f7\u3002
(1)72+360\u00f79-5 (2)72-4\u00d76\u00f73
\u2460\u5148\u7b97\u51cf\u6cd5\uff0c\u518d\u7b97\u9664\u6cd5\uff0c\u6700\u540e\u7b97\u52a0 \u2460\u5148\u7b97\u51cf\u6cd5\uff0c\u518d\u7b97\u4e58\u6cd5\uff0c\u6700\u540e\u7b97\u9664\u6cd5
\u2461\u5148\u7b97\u51cf\u6cd5\u548c\u52a0\u6cd5\uff0c\u6700\u540e\u518d\u7b97\u9664\u6cd5 \u2461\u5148\u7b97\u51cf\u6cd5\u548c\u9664\u6cd5\uff0c\u6700\u540e\u7b97\u4e58\u6cd5
\u2462\u5148\u7b97\u9664\u6cd5\uff0c\u518d\u7b97\u51cf\u6cd5\uff0c\u6700\u540e\u7b97\u52a0\u6cd5 \u2462\u5148\u7b97\u4e58\u6cd5\uff0c\u518d\u7b97\u51cf\u6cd5\uff0c\u6700\u540e\u7b97\u9664\u6cd5
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u4e09
1.\u53e3\u7b97:
2.5\u00d74= 8.4\u00f74= 3-1.4= 1.3\u00f7100= 120\u00d76=
85-58= 2.5+0.05= 45\u00d720= 100\u00d72.8= 8\u00d79+8=
7\u00d75\u00f77\u00d75= 125\u00d77\u00d78= 10\u2015(2.3+2.7)= 7\u00d799+7= 0.5+1.5=
120\u00f76\u00f72= 4\u00d7(36-25)= 0.5+0.5= 0.5-0.5= 300-84-16=
2.\u7528\u7ad6\u5f0f\u8ba1\u7b97\u4e0b\u9762\u5404\u9898\u5e76\u9a8c\u7b97\u3002
10-3.06 11.36+8.54
3.\u8ba1\u7b97\u4e0b\u9762\u5404\u9898\uff0c\u80fd\u7b80\u7b97\u7684\u8981\u7b80\u7b97\u3002
6.45-0.58-1.42 3.27+6.4+2.73+4.6 12000\u00f7125\u00d78
25\u00d744 125\u00d732\u00d725 (160+880)\u00d720
99\u00d745 102\u00d736 12\u00d7(324-285)\u00f726
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u56db
1\u3001\u247436\u52a0\u4e0a36\u9664720\u7684\u5546\uff0c\u518d\u51cf\u53bb6\uff0c\u5dee\u662f\u591a\u5c11?
\u247536\u52a0\u4e0a720\u9664\u4ee53.6\u7684\u5546\uff0c\u518d\u51cf\u53bb6\u7684\u5dee\uff0c\u548c\u662f\u591a\u5c11?
\u247636\u52a0\u4e0a720\u9664\u4ee53.6\u7684\u5546\uff0c\u518d\u51cf\u53bb6\uff0c\u5546\u662f\u591a\u5c11?
2\u3001\u247472\u51cf\u53bb4\u4e586\u7684\u79ef\uff0c\u518d\u9664\u4ee53\uff0c\u5dee\u662f\u591a\u5c11?
\u247572\u51cf\u53bb4\u7684\u5dee\u4e58\u4ee56\uff0c\u518d\u9664\u4ee53\uff0c\u5546\u662f\u591a\u5c11?
\u247672\u51cf\u53bb4\u7684\u5dee\u4e58\u4ee56\u4e0e3\u7684\u5546\uff0c\u79ef\u662f\u591a\u5c11?
3\u3001\u2474558\u52a0\u4e0a230\u4e58\u4ee56.2\uff0c\u518d\u9664\u4ee531\u7684\u5546\uff0c\u548c\u662f\u591a\u5c11?
\u2475558\u4e0e230\u7684\u548c\u4e58\u4ee56.2\u4e0e3.1\u7684\u5546\uff0c\u79ef\u662f\u591a\u5c11?
\u2476558\u52a0\u4e0a230\u4e0e6.2\u7684\u79ef\uff0c\u518d\u9664\u4ee53.1\uff0c\u5546\u662f\u591a\u5c11?
4\u3001\u247459\u52a0\u4e0a2.1\u4e58\u4ee59.6\uff0c\u518d\u9664\u4ee58\uff0c\u548c\u662f\u591a\u5c11?
\u247559\u4e0e21\u7684\u548c\u4e58\u4ee58\u966496\u7684\u5546\uff0c\u79ef\u662f\u591a\u5c11?
\u247659\u4e0e21\u548c\u4e58\u4ee596\uff0c\u518d\u9664\u4ee58\uff0c\u5546\u662f\u591a\u5c11?
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u4e94
1\u3001\u6839\u636e\u8fd0\u7b97\u987a\u5e8f\u6dfb\u4e0a\u5c0f\u62ec\u53f7\u6216\u4e2d\u62ec\u53f7:
(1) 32\u00d7800-400\u00f725 \u5148\u51cf\u518d\u4e58\u6700\u540e\u9664
(2) 32\u00d7800-400\u00f725 \u5148\u9664\u518d\u51cf\u6700\u540e\u4e58
(3) 32\u00d7800-400\u00f725 \u5148\u51cf\u518d\u9664\u6700\u540e\u4e58
2\u3001\u9012\u7b49\u5f0f\u8ba1\u7b97:
2400\u00f780-14\u00d72 108-(83+360\u00f760) (420+48)\u00f7(375-345)
420\u00f7(205-198)\u00d74 460\u00f7(29-18\u00f73) 1450\u00f72\u00d7(16+9)
3\u3001\u600e\u6837\u7b97\u7b80\u4fbf\u5c31\u600e\u6837\u7b97:
715+265+335+285 125\u00d732\u00d75 46\u00d7201
7100-137-263+300 75\u00d74\u00d72\u00d75 99\u00d764+64
3\u3001\u5217\u5f0f\u8ba1\u7b97:
(1)25\u548c40\u7684\u79ef\u662f163\u4e0e87\u7684\u548c\u7684\u591a\u5c11\u500d?
(2)\u4e00\u4e2a\u6570\u76848\u500d\u6bd454\u591a10\uff0c\u8fd9\u4e2a\u6570\u662f\u591a\u5c11?
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u516d
\u4e00\u3001\u76f4\u63a5\u5199\u5f97\u6570:
400\u00f750= 99\u00f733= 18\u00d750= 470+70=
14\u00d74= 750\u00f750= 1400\u00f770= 6\u00d7120=
480\u00f740= 620-30= 217-65-35= 30-30\u00f75
12\u00d76+8= 5\u00d74\u00d76= 84\u00f74\u00f77= 36\u00f79\u00d75=
\u4e8c\u3001\u7ad6\u5f0f\u8ba1\u7b97:
996\u00f7 83= 580 \u00f718= 4140 \u00f740=
\u4e09\u3001\u7528\u9012\u7b49\u5f0f\u8ba1\u7b97\u3002
490\u00f770\u00d7154 774\u00f7(17+26) 47-28+33
320-770\u00f711\u00d73 960\u00f732+15\u00d711 451-(164-88)\u00f73
\u56db\u3001\u7b80\u4fbf\u8ba1\u7b97:
34+3.46+0.66 74+(167+26) 37-56+73-44
2.5\u00d736 4.5\u00d7108 248+302 6.7\u00d712\u00d75
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u4e03
\u4e00\u3001\u53e3\u7b97:
60\u00d79= 50\u00d790= 600\u00f730= 20\u00d73.4=
4.3\u00d72= 1.1\u00d7600= 1.3\u00d7600= 7.5-1.8=
70-30= 8000-3000= 120\u00f73= 3\u00d7900=
900\u00f73= 320\u00f73= 210\u00d74= 25\u00d7100=
\u4e8c\u3001\u7528\u7ad6\u5f0f\u8ba1\u7b97:
3.8\u00d7250= 7580\u00f75.4= 140\u00d7250=
508\u00d71.5= 8500\u00f770= 40800\u00f7340=
\u4e09\u3001\u7b80\u4fbf\u8ba1\u7b97:
5.5\u00d722+78\u00d7 5.5 203\u00d74.6 203\u00d746-3\u00d746
99\u00d778 49\u00d799+99 98\u00d7101 98\u00d7101-98
49\u00d799+49 45+45\u00d726+45\u00d773 38\u00d736-36\u00d78
1.25\u00d732\u00d72.5 43+57-43+57 24\u00d75-24\u00d75
24\u00d75\u00f724\u00d75 576-203 289+104
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u516b
1\u3001\u76f4\u63a5\u5199\u5f97\u6570\u3002
6.2\u00d73= 0\u00d765+5= 7.7\u00d720= 6+1.8+84=
9.8+1.2= 42\u00d71\u00d75= 1.2\u00d725= 9\u00d75\u00f75\u00d79=
460+280= 810\u00f727= 540\u00f7270= 240\u00d730=
2\u3001\u8ba1\u7b97\u4e0b\u9762\u5404\u9898\u3002(\u80fd\u7b80\u7b97\u7684\u8981\u7b80\u7b97)
874\u00f7(24\u00d723-506) 25\u00d75\u00f7(155-30) 25\u00d799
25\u00d716 48\u00d7(39-594\u00f733) (40+4)\u00d72.5
96\u00d7101-96 486-(186+59)-41 863-297
3\u3001\u5217\u7efc\u5408\u7b97\u5f0f\u8ba1\u7b97\u3002
(1) 4.5\u4e584.5\u51cf\u53bb2.7\u7684\u5dee\uff0c\u79ef\u662f\u591a\u5c11?
(2)5.6\u52a0\u4e0a4.8\u4e583\u7684\u79ef\uff0c\u548c\u662f\u591a\u5c11?
(3)28.8\u9664\u4ee51.8\u4e584\u7684\u79ef\uff0c\u5546\u662f\u591a\u5c11?
\u5c0f\u5b66\u6570\u5b66\u56db\u5e74\u7ea7\u8ba1\u7b97\u9898\u8fc7\u5173\u7ec3\u4e60\u4e5d
\u4e00\u3001\u7528\u7ad6\u5f0f\u8ba1\u7b97
21.5\u00f72.4= 900\u00f72.4= 5.6\u00d70.35=
\u4e8c\u3001\u8131\u5f0f\u8ba1\u7b97\u3002
175-75\u00f725 68+35\u00d713 7.25-(1.25+2.37)
(11.4+16.6)\u00f735 43.2\u00f7(9\u00d78) 189-60+40
\u4e09\u3001\u7b80\u4fbf\u8ba1\u7b97\u3002
52+9.9 2.5\u00d732 47+23.6+6.4
6\u00d7(15\u00d79) 402+359 4.3+7.8+12.2+25.7
2.5\u00d7(26\u00d74) 25\u00d744 3.54+(229+0.46)
25\u00d714\u00d74
=25\u00d74\u00d714
=100\u00d714
=1400
.125\u00d719\u00d78
=125\u00d78\u00d719
=1000\u00d719
=19000
.20\u00d78\u00d75
=20\u00d75\u00d78
=100\u00d78
=800
6\u00d726+4\u00d726
=(6+4)\u00d726
=10\u00d726
=260
\u52a0\u6cd5\u8fd0\u7b97\u5b9a\u5f8b\u7684\u7b80\u4fbf\u8fd0\u7b97\u9898(\u4e00)
1) 500+(407+0)= 2) 386+382+114=
3) 42+(91+158+109)= 4) (87+103+113)+97=
5) (246+387+154)+13= 6) 49+(71+151+129)=
7) 255+(79+45)= 8) (169+39+131)+261=
9) 219+175+181+225= 10) 14+498+486=
11) (404+195+96)+305= 12) 793+393=
13) (106+45+94)+155= 14) 433+(477+67)+23=
15) 25+(251+275+49)= 16) 51+(5+49)=
17) (83+33+17)+67= 18) 196+97=
19) 41+(33+59)= 20) 290+171+210+329=
21) 1000+499= 22) 226+(166+74)=
23) 63+(82+137)+118= 24) 354+479+146=
25) 76+(44+124)+156= 26) 270+(96+230+404)=
27) 108+215+292+185= 28) (89+89)+(11+11)=
29) 108+(221+192+79)= 30) 257+60+143+340=
31) 56+(143+144)= 32) (259+349+141)+51=
33) (198+252+102)+48= 34) 80+(43+20+57)=
35) 434+238+66= 36) 92+(34+108)+166=
37) 82+(78+218+222)= 38) (54+150)+(146+50)=
39) 254+(144+246+356)= 40) 176+(236+124)+64=
41) 62+219+238+81= 42) (6+66+94)+34=
43) (140+125+160)+175= 44) 13+(287+387)=
45) 200+95= 46) 1002+495=
47) 370+430+130= 48) 159+140+41+60=
49) 195+(141+205+259)= 50) 31+(62+69)=
\u52a0\u51cf\u6cd5\u7684\u7b80\u4fbf\u8fd0\u7b97\u9898(\u4e00)
1) 713-(387+313)= 2) 866-370-130=
3) 399-195= 4) 400-199=
5) 807-401= 6) 397-196=
7) 369-(246+69)= 8) 594-300=
9) 480-78-116-206= 10) 982+(30-482)=
11) 656-(300-144)= 12) 514+(434-14)=
13) 756-272-(51+77)= 14) 594+(193-94)=
15) 146-(56-54)= 16) 597-196-104=
17) 760-(2+79)-319= 18) 200-93=
19) 227-(170+27)= 20) 282-9-(1+190)=
21) 152-31-(12+57)= 22) 365-(55+89)-56=
23) 206-106= 24) 392-(109+54)-37=
25) 344-143-95-62= 26) 556-98-(170+32)=
27) 266-(158+66)= 28) 377-(131-23)=
29) 349-(24+51)-125= 30) 529-(388-271)=
31) 606-303= 32) 234-(181-166)=
33) 753-449-51= 34) 399-30-(123+147)=
35) 561-(171+114)-115= 36) 333-(191-67)=
37) 405-(46+41)-213= 38) 617-60-(201+239)=
39) 842-12-135-353= 40) 599-300=
41) 699-(25+299)= 42) 122+(55-22)=
43) 820-93-407= 44) 630-103-12-385=
45) 254-(186-146)= 46) 761-(191+261)=
47) 709-(102+39)-259= 48) 207-96=
49) 666-338-62= 50) 120-(91-80)=
\u4e58\u6cd5\u8fd0\u7b97\u5b9a\u5f8b\u7684\u7b80\u4fbf\u8fd0\u7b97\u9898(\u4e00)
1) 402\u00d7389= 2) 72\u00d725=
3) 55\u00d728\u00d725= 4) 163\u00d756\u00d7125=
5) 294\u00d7353+147\u00d7294= 6) 107\u00d756\u00d7125=
7) 25\u00d7160\u00d7125= 8) 127\u00d716\u00d725=
9) 25\u00d7224\u00d7125= 10) 25\u00d764\u00d7125=
11) 4\u00d7482+4+17\u00d74= 12) 246\u00d7146+254\u00d7246=
13) 44\u00d716+44+483\u00d744= 14) 402\u00d779=
15) 78\u00d7186+14\u00d778= 16) 21\u00d755+45\u00d721=
17) 201\u00d78-8-8\u00d7100= 18) 362\u00d75+195\u00d7362=
19) 52\u00d725= 20) 197\u00d7171=
21) 25\u00d7288\u00d7125= 22) 25\u00d732\u00d7125=
23) 40\u00d7157+143\u00d740= 24) 166\u00d716\u00d725=
25) 194\u00d710-10-10\u00d793= 26) 134\u00d716\u00d7125=
27) 498\u00d783= 28) 45\u00d720\u00d725=
29) 231\u00d7173+27\u00d7231= 30) 155\u00d762+138\u00d7155=
31) 40\u00d7125= 32) 113\u00d728\u00d725=
33) 739\u00d77-7-7\u00d7338= 34) 726\u00d711-11-11\u00d7325=
35) 207\u00d7159+241\u00d7207= 36) 72\u00d745+55\u00d772=
37) 32\u00d7125= 38) 217\u00d712\u00d725=
39) 56\u00d728\u00d725= 40) 25\u00d796\u00d7125=
41) 228\u00d724\u00d725= 42) 24\u00d7125=
43) 64\u00d7125= 44) 44\u00d725=
45) 188\u00d724\u00d7125= 46) 191\u00d71-1-1\u00d790=
47) 25\u00d7160\u00d7125= 48) 56\u00d7125=
49) 72\u00d725= 50) 153\u00d716\u00d7125=
\u9664\u6cd5\u8fd0\u7b97\u5b9a\u5f8b\u7684\u7b80\u4fbf\u8fd0\u7b97\u9898(\u4e00)
1) 112000\u00f75600= 2) 7875\u00f725=
3) 200\u00f725= 4) 5400\u00f7150\u00f74=
5) 7475\u00f725= 6) 4755\u00f715=
7) 3600\u00f7100\u00f74= 8) 2400\u00f7100\u00f74=
9) 12600\u00f7600= 10) 2225\u00f725=
11) 6408\u00f724= 12) 2450\u00f725=
13) 2928\u00f724= 14) 11200\u00f7175\u00f74=
15) 1356\u00f712= 16) 5450\u00f725=
17) 81000\u00f74500= 18) 25900\u00f7175\u00f74=
19) 5000\u00f7125\u00f74= 20) 6000\u00f7100\u00f74=
21) 10400\u00f7100\u00f74= 22) 36000\u00f73600=
23) 1400\u00f750\u00f74= 24) 4250\u00f725=
25) 840\u00f724= 26) 10800\u00f7150\u00f74=
27) 1500\u00f725\u00f74= 28) 900\u00f7300=
29) 25200\u00f72800= 30) 50\u00f725=
31) 1000\u00f750\u00f74= 32) 48000\u00f73000=
33) 20000\u00f72500= 34) 1675\u00f725=
35) 5940\u00f727= 36) 900\u00f7900=
37) 700\u00f725= 38) 1200\u00f775\u00f74=
39) 912\u00f724= 40) 20000\u00f71000=
41) 1200\u00f725\u00f74= 42) 11475\u00f725=
43) 25200\u00f71800= 44) 129600\u00f75400=
45) 8000\u00f7100\u00f74= 46) 3000\u00f7125\u00f74=
47) 9075\u00f725= 48) 7200\u00f7150\u00f74=
49) 2650\u00f725= 50) 630\u00f718=
\u56db\u5219\u6df7\u5408\u8fd0\u7b97\u7684\u7b80\u4fbf\u8fd0\u7b97\u9898(\u4e00)
1) 444-(387-356)= 2) 5502\u00f721=
3) 25\u00d732\u00d7125= 4) 797+401=
5) 25\u00d7192\u00d7125= 6) 330\u00d7119+381\u00d7330=
7) (79+92+121)+108= 8) (37+56+63)+44=
9) 144-2-30-68= 10) 103\u00d791=
11) 25\u00d7192\u00d7125= 12) 304+(166-104)=
13) 282\u00d7135+365\u00d7282= 14) 183\u00d73-3-3\u00d782=
15) (155+356)+(345+144)= 16) 799-407=
17) 88\u00d7125= 18) 289+(376+111+24)=
19) (56+98)+(44+2)= 20) 89+(155+111+45)=
21) 124+(261+176+39)= 22) 297-0-(0+200)=
23) 67+71+233+229= 24) 376\u00d71-1-1\u00d7175=
25) 214\u00d771+429\u00d7214= 26) 9100\u00f7175\u00f74=
27) 108+(16-8)= 28) 58+156+142=
29) 396-203= 30) 25\u00d732\u00d7125=
31) 200+95= 32) 645-200-200=
33) 149+(208+251)+192= 34) (34+261+366)+139=
35) 407-205= 36) 250-57-143=
37) (33+65+67)+35= 38) 197-96=
39) (315+299+85)+101= 40) 40\u00d7125=
41) 25\u00d7128\u00d7125= 42) 62+(79+38)+21=
43) 4075\u00f725= 44) 40\u00d7125=
45) 48\u00d725= 46) 342\u00d7372+28\u00d7342=
47) 2\u00d7258+2+41\u00d72= 48) 101\u00d71=
49) 168-8-92= 50) 64\u00d7125=
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