急需100道脱式简便计算题带答案和过程 求100道五年级脱式计算题带答案和过程
\u6709100\u9053\u8131\u5f0f\u7b80\u4fbf\u8ba1\u7b97\u9898\u5e26\u7b54\u6848\u548c\u8fc7\u7a0b\u54171. 0.4\u00d7125\u00d725\u00d70.8 =\uff080.4\u00d725\uff09\u00d7\uff08125\u00d70.8\uff09=10\u00d7100=1000
2. 1.25\u00d7\uff088+10\uff09=1.25\u00d78+1.25\u00d710 =10+12.5=22.5
3.9123-\uff08123+8.8\uff09=9123-123-8.8=9000-8.8=8991.2
4.1.24\u00d78.3+8.3\u00d71.76 =8.3\u00d7\uff081.24+1.76\uff09 =8.3\u00d73=24.9
5.9999\u00d71001=9999\u00d7\uff081000+1\uff09=9999\u00d71000+9999\u00d71=10008999
6. 14.8\u00d76.3-6.3\u00d76.5\uff0b8.3\u00d73.7=\uff0814.8-6.5\uff09\u00d76.3\uff0b8.3\u00d73.7=8.3\u00d76.3+8.3\u00d73.7=8.3\u00d7\uff086.3\uff0b3.7\uff09=8.3\u00d710=83
7. 1.24+0.78+8.76=\uff081.24+8.76\uff09+0.78=10+0.78=10.78
8. 933-157-43 =933-\uff08157+43\uff09 =933-200 =733
9. 4821-998=4821-1000+22=3823
10. 32\u00d7125\u00d725=4\u00d78\u00d7125\u00d725=\uff084\u00d725\uff09\u00d7\uff088\u00d7125\uff09=100\u00d71000=100000 9048\u00f726=\uff082600+2600+2600+1248\uff09\u00f726=2600\u00f726+2600\u00f726+2600\u00f726+1248\u00f726=100+100+100+48=348
11. 2881\u00f7 43=\uff081290+1591\uff09\u00f7 43=1290\u00f743+1591\u00f743=30+37 =67 3.2\u00d742.3\u00d73.75-12.5\u00d70.423\u00d716=3.2\u00d742.3\u00d73.75-1.25\u00d742.3\u00d71.6=42.3\u00d7(3.2\u00d73.75-1.25\u00d71.6)=42.3\u00d7(4\u00d70.8\u00d73.75-1.25\u00d74\u00d70.4)=42.3\u00d7(4\u00d70.4\u00d72\u00d73.75-1.25\u00d74\u00d70.4)=42.3\u00d7(4x0.4x7.5-1.25x4x0.4)=42.3\u00d7[4\u00d70.4\u00d7(7.5-1.25)]=42.3\u00d7[4\u00d70.4\u00d76.25]=42.3\u00d7(4\u00d72.5) =423
12. 1.8+18\u00f71.5-0.5\u00d70.3 =1.8+12-0.15=13.8-0.15 =13.65
13. 6.5\u00d78+3.5\u00d78-47 =52+28-47 =80-47 =33 (80-9.8)\u00d75\u5206\u4e4b2-1.32 =70.2X2/5-1.32=28.08-1.32 =26.76
14. 8\u00d77\u5206\u4e4b4\u00f7[1\u00f7(3.2-2.95)] =8\u00d74/7\u00f7[1\u00f70.25]=8\u00d74/7\u00f74 =8/7
15. 2700\u00d7\uff08506\uff0d499\uff09\u00f7900 =2700\u00d77\u00f7900 =18900\u00f7900 =21
16. 33.02\uff0d\uff08148.4\uff0d90.85\uff09\u00f72.5=33.02\uff0d57.55\u00f72.3=33.02\uff0d23.02=10
17. \uff081\u00f71\uff0d1\uff09\u00f75.1 =\uff081\uff0d1\uff09\u00f75.1 =0\u00f75.1 =0
18. 18.1\uff0b\uff083\uff0d0.299\u00f70.23\uff09\u00d71=18.1\uff0b1.7\u00d71 =18.1\uff0b1.7 =19.8
19. 9000\u00f772\u00d7(1.25\u00d70.7\u00d78)=9000\u00f772\u00d77=125\u00d77=875
20. 61-(1.25+2.5\u00d70.7)=61-3=58
21. [(10-0.8)+9.85]-2\u00f70.125=19.05-2\u00f70.125=19.05-16=13.05
22. 5.4\u00f71.8+240\u00d71.5=3+360=363
23. 9000\u00f772\u00d7(1.25\u00d70.7\u00d78\uff09=9000\u00f772\u00d77=125\u00d77=875
24. 61-(1.25+2.5\u00d70.7)=61-3=58
25. [(10-0.8)+9.85]-2\u00f70.125=19.05-2\u00f70.125=19.05-16=3.05
26. 408\uff0d12\u00d724= 408 - 288= 120
27. \uff0846\uff0b28\uff09\u00d760= 74 x 60= 4440
28. 42\u00d750\uff0d17 = 2100- 17 = 2083
29. 32\uff0b105\u00f75 = 32 + 21= 53
30. 420\u00d7\uff08327\uff0d238\uff09 = 420 x 89 = 37380
31. (4121+2389)\u00f77 = 6510 \u00f77 = 930
32. 3.416\u00f7\uff080.016\u00d735\uff09 = 3.416 \u00f70.56 = 6.1
33. 0.8\u00d7[(10\uff0d6.76)\u00f71.2] = 0.8 x(3.24\u00f71.2) = 0.8 x 2.7 = 2.16
34. 5.67\u00d70.2-0.62 = 1.134-0.62 = 0.514
35.0.4\u00d70.7\u00d70.25 = 0.4 x 0.2 5 x 0.7 = 0.1 x 0.7 = 0.07
36. 0.78+5.436+1 = 6.216 +1 = 7.216
37. 30.8\u00f7[14\uff0d(9.85\uff0b1.07)] = 30.8 \u00f7 (14 - 10.92) = 30.8\u00f73.08 = 10
38. [60\uff0d(9.5\uff0b28.9)]\u00f70.18 = (60- 38.4)\u00f70.18 = 21.6 \u00f70.18 = 120
39. 2.881\u00f70.43\uff0d0.24\u00d73.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86
40. 20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15] = 20x (0.64 \u00f70.4 +0.15)= 20x(1.6 +0.15) = 20 x1.75 = 35
41. 28-(3.4+1.25\u00d72.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.6
42. 2.55\u00d77.1+2.45\u00d77.1 = (2.55 + 2.45) x7.1 = 5 x7.1=35.5
43. 0.8\u00d7\u301415.5-(3.21+5.79)\u3015 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.2
44.\uff0831.8+3.2\u00d74\uff09\u00f75 = (31.8 + 12.8)\u00f75 = 44.6\u00f75 = 8.92
45. 31.5\u00d74\u00f7(6+3) = 126 \u00f7 9 = 14
46. 2\u00f72.5+2.5\u00f72 = 0.8 + 1.25 =2.05
47. 194\uff0d64.8\u00f71.8\u00d70.9 = 194 -36 x0.9 = 194-32.4 = 161.65180\uff0d705\u00d76 = 5180 - 4230=950
48. 24\u00f72.4\uff0d2.5\u00d70.8 =10 -2=8
49. 405\u00d7(3213-3189) =405x24 = 9720
59. 125\u00d7(97-81) =125x16 =2000
60. 6942+480\u00f73 = 6942 + 160 = 6782
61. 20+80\u00f74-20 = 20 + 20 -20 = 40 -20 = 20
62. 100\u00f7\uff0832-30\uff09\u00d70 = 100 \u00f72 x0= 50 x0 = 0
63. 25\u00d74-12\u00d75 = 100 - 60 = 40
64. 70\u00d7\u3014\uff0842-42\uff09\u00f718\u3015=70 x (0\u00f718) = 70x0 = 0
65. 75\u00d765+75\u00d735 = 75 x (65 +35) = 75x100 = 7500
66. 6-1.6\u00f74= 6- 0.4 = 5.6
67. 5.38+7.85-5.37= 13.23 - 5.37=7.86
68. 7.2\u00f70.8-1.2\u00d75=9 - 6 =3
69. 6-1.19\u00d73-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 2
70. 6.5\u00d7\uff084.8-1.2\u00d74\uff09= 6.5 x(4.8 - 4.8 )=6.5 x0 = 0
71. 0.68\u00d71.9+0.32\u00d71.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.9
72. 10.15-10.75\u00d70.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.15
73. 5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.4
74. 32.52-\uff086+9.728\u00f73.2\uff09\u00d72.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.97
75.\uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09= 200x(65-15) = 200x 50=10000
76. 0.4\u00d7125\u00d725\u00d70.8 =(0.4\u00d725)\u00d7(125\u00d70.8)=10\u00d7100=1000
77. 1.25\u00d7(8+10) =1.25\u00d78+1.25\u00d710=10+12.5=22.5
78. 9123-(123+8.8) =9123-123-8.8=9000-8.8=8991.2
79. 1.24\u00d78.3+8.3\u00d71.76 =8.3\u00d7(1.24+1.76)=8.3\u00d73=24.9
80. 9999\u00d71001 =9999\u00d7(1000+1)=9999\u00d71000+9999\u00d71 =10008999
81. 14.8\u00d76.3-6.3\u00d76.5+8.3\u00d73.7 =(14.8-6.5)\u00d76.3+8.3\u00d73.7=8.3\u00d76.3+8.3\u00d73.7
82. 8.3\u00d7(6.3+3.7) =8.3\u00d710 =83
83. 1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.78
84. 933-157-43 =933-(157+43)=933-200=733
85. 4821-998 =4821-1000+2=3823
86. I32\u00d7125\u00d725 =4\u00d78\u00d7125\u00d725 =(4\u00d725)\u00d7(8\u00d7125)=100\u00d71000 =100000
87. 9048\u00f7268=(2600+2600+2600+1248)\u00f726=2600\u00f726+2600\u00f726+2600\u00f726+1248\u00f7269=100+100+100+48=348
88. 2881\u00f7 43 =(1290+1591)\u00f7 434=1290\u00f743+1591\u00f743=30+37
89. 1.8+18\u00f71.5-0.5\u00d70.3 =1.8+12-0.15=13.8-0.15=13.65
90. 6.5\u00d78+3.5\u00d78-47 =52+28-47=80-47
91. (80-9.8)\u00d75\u5206\u4e4b2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76
92. 8\u00d77\u5206\u4e4b4\u00f7[1\u00f7(3.2-2.95)]=8\u00d74/7\u00f7[1\u00f70.25]=8\u00d74/7\u00f74=8/7
93. 2700\u00d7(506-499)\u00f7900 =2700\u00d77\u00f7900 =18900\u00f7900 =21
94. 33.02-(148.4-90.85)\u00f72.5=33.02-57.55\u00f72.5=33.02-23.02 =10
95. (1\u00f71-1)\u00f75.1 =(1-1)\u00f75.1 =0\u00f75.1 =0
96. 18.1+(3-0.299\u00f70.23)\u00d71=18.1+1.7\u00d71 =18.1+1.7 =19.8
97. 4.1/27+505/2727+131313/272727 =1/27+5*101/(27*101)+13*10101/(27*10101)=1/27+5/27+13/27=19/27
98. 6.5\u00d78+3.5\u00d78-47 =52+28-47=80-47
99. (80-9.8)\u00d75\u5206\u4e4b2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76
100. 1.8+18\u00f71.5-0.5\u00d70.3 =1.8+12-0.15=13.8-0.15=13.65
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5.4\u00f71.8+240\u00d71.5=3+360=363
9000\u00f772\u00d7(1.25\u00d70.7\u00d78)=9000\u00f772\u00d77=125\u00d77=875
1.25\u00d7(8+10)=1.25\u00d78+1.25\u00d710=10+12.5=22.51.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78
1/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5
4800\u00f725\u00f74=4800\u00f7(25x4)=4800\u00f7100=4800\u00f7100=48
2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8
3/4-(3/7-1/4)=3/4+1/4-3/7=1-3/7=4/7
3.2x0.125x2.5=0.125x8x(0.4x2.5)=1x1=1
0.4\u00d7125\u00d725\u00d70.8=(0.4\u00d725)\u00d7(125\u00d70.8)=10\u00d7100=1000
1.25\u00d7(8+10)=1.25\u00d78+1.25\u00d710=10+12.5=22.5
9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2
1.24\u00d78.3+8.3\u00d71.76=8.3\u00d7(1.24+1.76)=8.3\u00d73=24.9
9999\u00d71001=9999\u00d7(1000+1)=9999\u00d71000+9999\u00d71=10008999
14.8\u00d76.3-6.3\u00d76.5+8.3\u00d73.7=(14.8-6.5)\u00d76.3+8.3\u00d73.7=8.3\u00d76.3+8.3\u00d73.7=8.3\u00d7(6.3+3.7)=8.3\u00d710=83
1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78
933-157-43=933-(157+43)=933-200=733
4821-998=4821-1000+2=3823
32\u00d7125\u00d725=4\u00d78\u00d7125\u00d725=(4\u00d725)\u00d7(8\u00d7125)=100\u00d71000=100000
1.8+18\u00f71.5-0.5\u00d70.3=1.8+12-0.15=13.8-0.15=13.65
6.5\u00d78+3.5\u00d78-47=52+28-47=80-47=33
3.7x2.56-2.3=9.472-2.3=7.1721.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78
1/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5
4800\u00f725\u00f74=4800\u00f7(25x4)=4800\u00f7100=4800\u00f7100=48
2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8
3/4-(3/7-1/4)=3/4+1/4-3/7=1-3/7=4/7
3.2x0.125x2.5=0.125x8x(0.4x2.5)=1x1=1
0.4\u00d7125\u00d725\u00d70.8=(0.4\u00d725)\u00d7(125\u00d70.8)=10\u00d7100=1000
1.25\u00d7(8+10)=1.25\u00d78+1.25\u00d710=10+12.5=22.5
9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2
1.24\u00d78.3+8.3\u00d71.76=8.3\u00d7(1.24+1.76)=8.3\u00d73=24.9
61-(1.25+2.5\u00d70.7)=61-3=58
[(10-0.8)+9.85]-2\u00f70.125=19.05-2\u00f70.125=19.05-16=3.05
408\uff0d12\u00d724 = 408 - 288 = 120\uff0846\uff0b28\uff09\u00d760 = 74 x 60 = 4440
42\u00d750\uff0d17 = 2100- 17 = 2083
32\uff0b105\u00f75 = 32 + 21 = 53
420\u00d7\uff08327\uff0d238\uff09 = 420 x 89 = 37380
(4121+2389)\u00f77 = 6510 \u00f77 = 930
3.416\u00f7\uff080.016\u00d735\uff09 = 3.416 \u00f70.56 = 6.1
0.8\u00d7[(10\uff0d6.76)\u00f71.2] = 0.8 x(3.24\u00f71.2) = 0.8 x 2.7 = 2.16
5.67\u00d70.2-0.62 = 1.134-0.62 = 0.514
0.4\u00d70.7\u00d70.25 = 0.4 x 0.25 x 0.7 = 0.1 x 0.7 = 0.07
0.78+5.436+1 = 6.216 +1 = 7.216
30.8\u00f7[14\uff0d(9.85\uff0b1.07)] = 30.8 \u00f7 (14 - 10.92) = 30.8\u00f73.08 = 10
[60\uff0d(9.5\uff0b28.9)]\u00f70.18 = (60- 38.4)\u00f70.18 = 21.6 \u00f70.18 = 120
2.881\u00f70.43\uff0d0.24\u00d73.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86
5.38+7.85-5.37= 13.23 - 5.37=7.86
7.2\u00f70.8-1.2\u00d75=9 - 6 =3
6-1.19\u00d73-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 2
6.5\u00d7\uff084.8-1.2\u00d74\uff09= 6.5 x(4.8 - 4.8 )=6.5 x0 = 0
0.68\u00d71.9+0.32\u00d71.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.9
10.15-10.75\u00d70.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.15
5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.4
20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15] = 20x (0.64 \u00f70.4 +0.15)= 20x(1.6 +0.15) = 20 x1.75 = 35
28-(3.4+1.25\u00d72.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.6
2.55\u00d77.1+2.45\u00d77.1 = (2.55 + 2.45) x7.1 = 5 x7.1=35.5
0.8\u00d7\u301415.5-(3.21+5.79)\u3015 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.2
\uff0831.8+3.2\u00d74\uff09\u00f75 = (31.8 + 12.8)\u00f75 = 44.6\u00f75 = 8.92
31.5\u00d74\u00f7(6+3) = 126 \u00f7 9 = 14
2\u00f72.5+2.5\u00f72 = 0.8 + 1.25 =2.05
194\uff0d64.8\u00f71.8\u00d70.9 = 194 -36 x0.9 = 194-32.4 = 161.65180\uff0d705\u00d76 = 5180 - 4230=950
24\u00f72.4\uff0d2.5\u00d70.8 =10 -2=8
405\u00d7(3213-3189) =405x24 = 9720
125\u00d7(97-81) =125x16 =2000
6942+480\u00f73 = 6942 + 160 = 6782
20+80\u00f74-20 = 20 + 20 -20 = 40 -20 = 20
100\u00f7\uff0832-30\uff09\u00d70 = 100 \u00f72 x0= 50 x0 = 0
25\u00d74-12\u00d75 = 100 - 60 = 40
70\u00d7\u3014\uff0842-42\uff09\u00f718\u3015=70 x (0\u00f718) = 70x0 = 0
75\u00d765+75\u00d735 = 75 x (65 +35) = 75x100 = 7500
6-1.6\u00f74= 6- 0.4 = 5.6
32.52-\uff086+9.728\u00f73.2\uff09\u00d72.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.97
\uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09= 200x(65-15) = 200x 50=10000
1. 0.4×125×25×0.8 =（0.4×25）×（125×0.8）=10×100=1000
2. 1.25×（8+10）=1.25×8+1.25×10 =10+12.5=22.5
3.9123-（123+8.8）=9123-123-8.8=9000-8.8=8991.2
4.1.24×8.3+8.3×1.76 =8.3×（1.24+1.76） =8.3×3=24.9
5.9999×1001
=9999×（1000+1）
=9999×1000+9999×1
=10008999
6. 14.8×6.3-6.3×6.5＋8.3×3.7
=（14.8-6.5）×6.3＋8.3×3.7
=8.3×6.3+8.3×3.7
=8.3×（6.3＋3.7）
=8.3×10
=83
7. 1.24+0.78+8.76
=（1.24+8.76）+0.78
=10+0.78
=10.78
8. 933-157-43 =933-（157+43） =933-200 =733
9. 4821-998
=4821-1000+22=3823
10. 32×125×25
=4×8×125×25
=（4×25）×（8×125）
=100×1000
=100000 9048÷26
=（2600+2600+2600+1248）÷26
=2600÷26+2600÷26+2600÷26+1248÷26
=100+100+100+48
=348
11. 2881÷ 43
=（1290+1591）÷ 43
=1290÷43+1591÷43
=30+37 =67 3.2×42.3×3.75-12.5×0.423×16
=3.2×42.3×3.75-1.25×42.3×1.6
=42.3×(3.2×3.75-1.25×1.6)
=42.3×(4×0.8×3.75-1.25×4×0.4)
=42.3×(4×0.4×2×3.75-1.25×4×0.4)
=42.3×(4x0.4x7.5-1.25x4x0.4)
=42.3×[4×0.4×(7.5-1.25)]
=42.3×[4×0.4×6.25]
=42.3×(4×2.5) =423
12. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15 =13.65
13. 6.5×8+3.5×8-47 =52+28-47 =80-47 =33 (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32 =26.76
14. 8×7分之4÷[1÷(3.2-2.95)] =8×4/7÷[1÷0.25]=8×4/7÷4 =8/7
15. 2700×（506－499）÷900 =2700×7÷900 =18900÷900 =21
16. 33.02－（148.4－90.85）÷2.5=33.02－57.55÷2.3=33.02－23.02=10
17. （1÷1－1）÷5.1 =（1－1）÷5.1 =0÷5.1 =0
18. 18.1＋（3－0.299÷0.23）×1=18.1＋1.7×1 =18.1＋1.7 =19.8
19. 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=875
20. 61-(1.25+2.5×0.7)=61-3=58
21. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=13.05
22. 5.4÷1.8+240×1.5=3+360=363
23. 9000÷72×(1.25×0.7×8）=9000÷72×7=125×7=875
24. 61-(1.25+2.5×0.7)=61-3=58
25. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=3.05
26. 408－12×24= 408 - 288= 120
27. （46＋28）×60= 74 x 60= 4440
28. 42×50－17 = 2100- 17 = 2083
29. 32＋105÷5 = 32 + 21= 53
30. 420×（327－238） = 420 x 89 = 37380
31. (4121+2389)÷7 = 6510 ÷7 = 930
32. 3.416÷（0.016×35） = 3.416 ÷0.56 = 6.1
33. 0.8×[(10－6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16
34. 5.67×0.2-0.62 = 1.134-0.62 = 0.514
35.0.4×0.7×0.25 = 0.4 x 0.2 5 x 0.7 = 0.1 x 0.7 = 0.07
36. 0.78+5.436+1 = 6.216 +1 = 7.216
37. 30.8÷[14－(9.85＋1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10
38. [60－(9.5＋28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 120
39. 2.881÷0.43－0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86
40. 20×[(2.44－1.8)÷0.4＋0.15] = 20x (0.64 ÷0.4 +0.15)= 20x(1.6 +0.15) = 20 x1.75 = 35
41. 28-(3.4+1.25×2.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.6
42. 2.55×7.1+2.45×7.1 = (2.55 + 2.45) x7.1 = 5 x7.1=35.5
43. 0.8×〔15.5-(3.21+5.79)〕 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.2
44.（31.8+3.2×4）÷5 = (31.8 + 12.8)÷5 = 44.6÷5 = 8.92
45. 31.5×4÷(6+3) = 126 ÷ 9 = 14
46. 2÷2.5+2.5÷2 = 0.8 + 1.25 =2.05
47. 194－64.8÷1.8×0.9 = 194 -36 x0.9 = 194-32.4 = 161.65180－705×6 = 5180 - 4230=950
48. 24÷2.4－2.5×0.8 =10 -2=8
49. 405×(3213-3189) =405x24 = 9720
59. 125×(97-81) =125x16 =2000
60. 6942+480÷3 = 6942 + 160 = 6782
61. 20+80÷4-20 = 20 + 20 -20 = 40 -20 = 20
62. 100÷（32-30）×0 = 100 ÷2 x0= 50 x0 = 0
63. 25×4-12×5 = 100 - 60 = 40
64. 70×〔（42-42）÷18〕=70 x (0÷18) = 70x0 = 0
65. 75×65+75×35 = 75 x (65 +35) = 75x100 = 7500
66. 6-1.6÷4= 6- 0.4 = 5.6
67. 5.38+7.85-5.37= 13.23 - 5.37=7.86
68. 7.2÷0.8-1.2×5=9 - 6 =3
69. 6-1.19×3-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 2
70. 6.5×（4.8-1.2×4）= 6.5 x(4.8 - 4.8 )=6.5 x0 = 0
71. 0.68×1.9+0.32×1.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.9
72. 10.15-10.75×0.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.15
73. 5.8×（3.87-0.13）+4.2×3.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.4
74. 32.52-（6+9.728÷3.2）×2.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.97
75.（136+64）×（65-345÷23）= 200x(65-15) = 200x 50=10000
76. 0.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=1000
77. 1.25×(8+10) =1.25×8+1.25×10=10+12.5=22.5
78. 9123-(123+8.8) =9123-123-8.8=9000-8.8=8991.2
79. 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76)=8.3×3=24.9
80. 9999×1001 =9999×(1000+1)=9999×1000+9999×1 =10008999
81. 14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7
82. 8.3×(6.3+3.7) =8.3×10 =83
83. 1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.78
84. 933-157-43 =933-(157+43)=933-200=733
85. 4821-998 =4821-1000+2=3823
86. I32×125×25 =4×8×125×25 =(4×25)×(8×125)=100×1000 =100000
87. 9048÷268
=(2600+2600+2600+1248)÷26
=2600÷26+2600÷26+2600÷26+1248÷269
=100+100+100+48
=348
88. 2881÷ 43 =(1290+1591)÷ 434=1290÷43+1591÷43=30+37
89. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.65
90. 6.5×8+3.5×8-47 =52+28-47=80-47
91. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76
92. 8×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4=8/7
93. 2700×(506-499)÷900 =2700×7÷900 =18900÷900 =21
94. 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.5=33.02-23.02 =10
95. (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =0
96. 18.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7 =19.8
97. 4.1/27+505/2727+131313/272727 =1/27+5*101/(27*101)+13*10101/(27*10101)
=1/27+5/27+13/27=19/27
98. 6.5×8+3.5×8-47 =52+28-47=80-47
99. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76
100. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.65
(80+4) ×25 5×289×2
=80×25+4×25 =(5×2)×289
=2000+100 =10×289
=2100 =2890
25×125×8×4 329×101
=(25×4)×(125×8) =329×(100+1)
=100×1000 =329×100+329×1
=100000 =33229
6×72+28×6
=6×(72+28)
=6×100
=600
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绛旓細7锛125脳(33锛1) 8锛37.4锛(8.6锛7.24锛6.6)璁＄畻銆傦紙1鈭1锛夛紙1锛156脳107-7729 锛2锛37.85-锛7.85+6.4锛夛紙3锛287脳5+96990梅318 锛4锛1554梅[锛72-58锛壝3]鑴卞紡璁＄畻 2800梅 100锛789 锛947锛599锛夛紜76脳64 1锛36脳(913锛276梅23) 2锛(93锛25脳21)脳9 ...
绛旓細9. 4821-998=4821-1000+22=3823 10. 32脳125脳25=4脳8脳125脳25=锛4脳25锛壝楋紙8脳125锛=100脳1000=100000 9048梅26=锛2600+2600+2600+1248锛壝26=2600梅26+2600梅26+2600梅26+1248梅26=100+100+100+48=348 11. 2881梅 43=锛1290+1591锛壝 43=1290梅43+1591梅43=30+37 =67 3....
绛旓細瑕100閬撹劚寮璁＄畻绠渚胯绠瑕佺瓟妗堝ぇ鍝ュぇ濮愭垜寰堟ワ紒鎷滄墭浣犱簡 瑙ｆ瀽锛 33脳99+33 =33脳(99+1) =33脳100 =3300 鐢ㄧ畝渚挎柟娉曡绠17.5*101瑕佺瓟妗堟 17.5*101 17.5*锛100+1锛 =17.5*100+17.5*1 =1750+17.5 =1767.5 3.12脳24+1.88脳2.4鑴卞紡璁＄畻绠渚胯绠楁 3.12脳...
绛旓細1銆1.25脳(8+10)=1.25脳8+1.25脳10 =10+12.5 =22.5 2銆1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.78 3銆1/2-(4/5-1/2)=1/2+1/2-4/5 =1-4/5 =1/5 4銆4800梅25梅4 =4800梅(25x4)=4800梅100 =4800梅100 =48 5銆2/5-(3/8-3/5)=2/5+...
绛旓細鍥涘勾绾т笅鍐屾暟瀛绠渚胯绠100閬 锛1锛67锛42锛33锛58 锛2锛258锛58锛26锛74 锛3锛125脳16 锛4锛50脳锛2脳4锛壝25 锛5锛7脳8脳3脳125 锛6锛26脳103 锛7锛501脳12 锛8锛25脳锛40+8锛夛紙9锛39脳14锛61脳14 锛10锛163脳8锛37脳8 锛11锛202脳13 锛12锛77脳4脳5 锛13锛27脳99 锛...
绛旓細1.3/7 脳 49/9 - 4/3 2.8/9 脳 15/36 + 1/27 3.12脳 5/6 鈥 2/9 脳3 4.8脳 5/4 + 1/4 5.6梅 3/8 鈥 3/8 梅6 6.4/7 脳 5/9 + 3/7 脳 5/9 7.5/2 -锛 3/2 + 4/5 锛8.7/8 + 锛 1/8 + 1/9 锛9.9 脳 5/6 + 5/6 10.3/4 脳 8/9...
绛旓細涓嬮潰鍚勯鎬庢牱绠楃畝渚灏辨庢牱绠椼6.9锛4.8锛3.1 0.456锛6.22锛3.78 15.89锛(6.75锛5.89)4.02锛5.4锛0.98 5.17锛1.8锛3.2 13.75锛(3.75锛6.48)3.68锛7.56锛2.68 7.85锛2.34锛0.85锛4.66 35.6锛1.8锛15.6锛7.2 3.82锛2.9锛0.18锛9.1 ...
绛旓細2.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4. 3/7 脳 49/9 - 4/3 5. 8/9 脳 15/36 + 1/27 6. 12脳 5/6 鈥 2/9 脳3 7. 8脳 5/4 + 1/4 8. 6梅 3/8 鈥 3/8 梅6 9. 4/7 脳 5/9 + 3/7 脳 5/9 10. 5/2 -锛 3/2 + 4/5 锛11. ...
绛旓細= 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 鑴卞紡璁＄畻棰澶у叏甯︾瓟妗 0.4脳125脳25脳0.8 =(0.4脳25)脳(125脳0.8) =10脳100=1000 1.25脳(8+10) =1.25脳8+1.25脳10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8...
绛旓細=9+90+900+9000+90000-5 =99999-5 =99994 0.67脳2.1+0.018脳21+8.5脳0.79 =0.67脳2.1+0.18脳2.1+8.5脳0.79 =锛0.67+0.18锛壝2.1+8.5脳0.79 =0.85脳2.1+0.85脳7.9 =0.85脳锛2.1+7.9锛=0.85脳10 =8.5 22222.2脳9.99999 =22222.2脳锛10-0.00001锛=...
