我要四年级下册数学120道脱式计算，300道列竖式计算。正确的加分！！！！！！！！ 80道简便运算要列竖式，加80道列竖式计算，加80道脱式，四...
\u8981\u56db\u5e74\u7ea7\u4e0b\u518c\u7684\u65b9\u7a0b\u3001\u4e58\u6cd5\u9664\u6cd5\u7ad6\u5f0f\u3001\u7b80\u4fbf\u8ba1\u7b97\u3001\u8131\u5f0f\u8ba1\u7b97\u9898\uff01\uff01450\u00f750= 252\u00f770= 420\u00f730=
420\u00f740= 420\u00f750= 526\u00f740=
83\u00d726= 33\u00d766= 84\u00d759= 26\u00d747=
54\u00d725= 21\u00d744= 66\u00d777= 19\u00d736=
24\u00d711= 47\u00d711= 35\u00d711= 78\u00d711=
\u5982\u679c\u8981\u5c0f\u6570\u52a0\u51cf\u7684\u8bdd\uff0c\u5230\u8fd9\u91cc\u6765\u5427http://zhidao.baidu.com/question/94954931.html?fr=ala0
526\u00f780= 630\u00f760= 600\u00f730=
530\u00f750= 640\u00f740= 500\u00f770=
510\u00f790= 850\u00f750= 800\u00f740=
192\u00f732= 192\u00f739= 97\u00f723=
334\u00f741= 85\u00f738= 240\u00f757=
210\u00f742= 274\u00f729= 450\u00f763=
362\u00f748=
510\u00f787= 510\u00f782= 265\u00f759=
10\uff0d4.4\uff1d 6\uff0b6.6\uff1d 9.5\uff0d2.7\uff1d 1\uff0d0.55\uff1d 3.7\uff0b4.8\uff1d
7\uff0b3.3\uff1d
0.9\uff0b1\uff1d 45\u00f73\uff1d 2.7\uff0b3.9\uff1d 18\u00d74\uff1d 416\u00f74\uff1d
1\uff0d0.44\uff1d 0\uff0e7\uff0b0\uff0e9= 3\uff0e25\uff0b0\uff0e75=
14\uff0e6\uff0d0\uff0e4= 10\uff0d0\uff0e1=
14\uff0b0\uff0e78= 1\uff0d0\uff0e3= 5\uff0d0\uff0e08= 1\uff0e1\uff0d1=
1\uff0e64\uff0b2\uff0e35= 8\uff0e34\uff0d6\uff0e22= 12\uff0e6\uff0b3\uff0e4=
1.3+4.3 7.2+6.9 9.3-8.8 4.4+15.99 19.8-5.6 96.3-56.2
79.2+56.8 1.99+25.7 93.88-69.21 0.33+9.88 136.5-105.763.4+52.1
93.1-20.9 63.1-13.8 103.9+450.613.88-5.77 96.12+52.3 13.2+65.1
7
8.9-65.4 12.3+96.5 42.5-19.5 73.55-14.68 46.32+65.18
95.44+53.12 96.42-13.88 42.5-17.8 63.22-22.77 69.12+78.39
42.55-0.69 0.55-0.33 45.96-24.41 75.2-28.3 64.2+15.4
10.23-0.88 4.56+14.62 7.9+53.1 56.4+23.1 96.4-57.1 55.1+65.9
56.78-21.5 96.1-43.2
1\u3001\u53e3\u7b97\u4e0e\u4f30\u7b97\uff1a
900\u00f730 12\u00d740 480\u00f780 16\u00d76 12\u00d77
420\u00f760 100\u00d726 2400\uff0b300 5600\u00f770 320\uff0b780
90\u00f718 16\u00d725 480\uff0b30 300\uff0d25\u00d74 100\uff0d72\u00f78
689\u00d75\u2248 5430\u00f79\u2248 3976\u00f78\u2248 2080\u00d74\u2248 260\u00d78\u2248
2\u3001\u7528\u7ad6\u5de5\u8ba1\u7b97\u5e76\u9a8c\u7b97\uff1a
209\u00d743 8652\u00f736
900÷30 12×40 480÷80 16×6 12×7
420÷60 100×26 2400＋300 5600÷70 320＋780
90÷18 16×25 480＋30 300－25×4 100－72÷8
689×5≈ 5430÷9≈ 3976÷8≈ 2080×4≈ 260×8≈
2、用竖工计算并验算：
209×43 8652÷36
HJKSJLFDSJHGSJ HJJFVGZV
LDVFBFGJB;'FFJGFNGFGBFJGG
FHDFBDFDSDFBERLUEYWIIYRTE
FDLKGJHBDHGFNKGBFNJF
四年级脱式计算是几步的啊，是几位数乘几位数的啊？列竖式计算呢？
牛！！！
绛旓細16銆佸悓瀛︿滑绉嶅悜鏃ヨ懙,浜斿勾绾х鐨勬５鏁版瘮鍥涘勾绾绉嶇殑3鍊嶅皯10妫,浜斿勾绾ф瘮鍥涘勾绾у绉62妫,涓や釜骞寸骇鍚勭澶氬皯妫? 17銆佺數瑙嗘満鍘傜敓浜т竴鎵圭數瑙嗘満,濡傛灉姣忓ぉ鐢熶骇40鍙,瑕佹瘮鍘熻鍒掑鐢熶骇6澶,濡傛灉姣忓ぉ鐢熶骇60鍙,鍙互姣斿師璁″垝鎻愬墠4澶╁畬鎴,姹傚師璁″垝鐢熶骇鏃堕棿鍜岃繖鎵圭數瑙嗘満鐨勬诲彴鏁. [5] 19銆佷竴鎶婄洿灏哄拰涓鎶婂皬鍒鍏1.9鍏,4鎶...
绛旓細1銆125+25脳6 2銆侊紙135锛75锛壝凤紙14脳5锛 3銆120锛60梅5脳5 4銆1024梅16脳3 5銆侊紙135锛415锛壝5+16 6銆1200锛20脳720锛720梅15 7銆(360-144)梅24脳3 8銆240+480梅30脳锛6+13锛 9銆侊紙120脳2+120锛壝9 10銆164-13脳5+85 11銆330梅(65锛50) 12銆...
绛旓細锛1锛98+998+9998+99998 =(100-2)+(1000-2)+(10000-2)+(10000-2)=100+1000+10000+10000-2-2-2-2 =111100-8 =111092 锛2锛1127*1123 =(1120+7)*(1120+3)=1120*1120+1120*3+1120*7+7*3 =1254400+1120*(7+3)+21 =1254400+11200+21 =1265621 鑴卞紡璁＄畻.408锛12脳24 锛46锛2...
绛旓細16800梅120 30100梅2100 32000梅400 49700梅700 1248梅24 3150梅15 4800梅25 21500梅125 2356-(1356-721) 1235-(1780-1665) 75脳27+19脳25 31脳870+13脳310 4脳(25脳65+25脳28) 鍥涘勾绾ц劚寮璁＄畻棰260閬 澶浜,鏃犳硶甯綘銆 鍥涘勾绾ц劚寮忚绠楅11000閬 178脳(100-1) =178脳100 =17800 83脳(102-2)...
绛旓細8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18/鍒嗘暟绾 宸﹁竟鏄垎姣 *涔樺彿 2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/...
绛旓細濡備笅鍥撅細鑴卞紡璁＄畻鏄竴涓鏁板瀛︾鏈锛屽嵆閫掔瓑寮忚绠楋紝鎶婅绠楄繃绋嬪畬鏁村啓鍑烘潵鐨勮繍绠楋紝涔熷氨鏄劚绂荤珫寮忕殑璁＄畻銆備富瑕佹帉鎻＄殑鏄浣忚鍏堢畻涔樸侀櫎娉曪紝鍚庣畻鍔犮佸噺娉曘傚湪涔橀櫎娉曡繛缁ц绠楁椂涓紝瑕佹寜浠庡乏寰鍙崇殑椤哄簭渚濇璁＄畻銆傞亣鍒版嫭鍙凤紝瑕侀鍏堣绠楁嫭鍙峰唴閮ㄣ傚湪鑴卞紡杩囩▼涓鎸夎繍绠楅『搴忓垝鍑鸿繍绠楅『搴忕嚎锛岃繕瑕佸仛鍒扳滀笁...
绛旓細1.45+15脳6= 135 2.250梅5脳8=400 3.6脳5梅2脳4=60 4.30脳3+8=98 5.400梅4+20脳5= 200 6.10+12梅3+20=34 7.(80梅20+80)梅4=21 8.70+(100-10脳5)=120 9.360梅40+10= 19 10.40脳20-200= 600 11.锛80-25锛*2= 110 12.70...
绛旓細鍥涘勾绾ф暟瀛︿笅鍐岃劚寮璁＄畻缁冧範棰1銆125+25脳6 2銆120锛60梅5脳5 3銆1024梅16脳3 4銆侊紙135锛415锛壝5+16 5銆164-13脳5+85 6銆330梅(65锛50) 7銆128锛6脳8梅16 8銆64脳(12锛65梅13) 9銆5940梅45脳(...
绛旓細瑕佸洓骞寸骇涓嬪唽鑴卞紡璁＄畻200閬 (1)98+998+9998+99998 =(100-2)+(1000-2)+(10000-2)+(10000-2) =100+1000+10000+10000-2-2-2-2 =111100-8 =111092 (2)1127*1123 =(1120+7)*(1120+3) =1120*1120+1120*3+1120*7+7*3 =1254400+1120*(7+3)+21 =1254400+11200+21 =1265621 鑴卞紡璁＄畻銆 408...
绛旓細鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 鍏虫敞 灞曞紑鍏ㄩ儴 涓夊崄閬撹劚寮璁＄畻棰.姹傚府鍔.甯﹁绠,瑕佸鏉傜偣鐨 鍥涘勾绾ф暟瀛棰樼洰: 鐢ㄧ畝渚挎柟娉曡绠. 1銆368+2649+1351 2銆 87+101+113 3銆24+127+476+573 4銆400-273-127 5銆327+(96-127) 6銆72脳98 7銆999+99+9 8銆442-103-142 9銆67脳5脳2 10銆25脳(78脳4) 11銆...
