四年级数学下册小数加减法简便计算专项练习题31Word格式文档下载.docx
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2.4+2.1+8.58.03-2.27-4.73
23+7.1+9.5+331.65+0.85+6.15
3.22+5.74+4.785.49+4.2+2.51+5.8
2.4+0.23+5.77+3.68.22+2.65-6.22
3.7+6.42+6.3=3.7+____+6.42
(5.28+1.02)+6.98=____+(____+____)
17.53-7.5-2.5=____〇(____〇____)
7.47+5.9+3.16.26-1.1-4.9
6.53-1.5+3.478.5+0.53+0.47+21.5
4.3+7.9+1.19.69-3.75-1.25
35+1.5+1.4+537.15+0.34+5.66
3.42+7.64+3.580.55+8.7+8.45+1.3
3.1+4.97+4.03+3.99.05+0.67-6.05
6.8+3.42+3.2=6.8+____+3.42
(4.94+4.86)+1.14=____+(____+____)
39.82-3.3-6.7=____〇(____〇____)
2.15+3.7+5.36.69-3.2-0.8
4.35-3.6+3.6512.7+0.92+0.08+10.3
2.6+6.6+6.88.67-1.96-2.04
99+1.4+6.2+125.17+1.96+7.04
0.01+6.45+9.990.66+0.6+6.34+9.4
1.4+3.97+1.03+6.67.31+1.78-6.31
2.5+2.55+7.5=2.5+____+2.55
(9.57+3.11)+4.89=____+(____+____)
32.56-1.7-8.3=____〇(____〇____)
9.12+3.9+6.17.24-1.1-2.9
5.49-2.1+1.515.1+0.67+0.33+16.9
9.9+7.3+9.87.04-3.13-1.87
28+3.8+6.6+731.88+1.48+5.52
5.16+2.47+2.840.96+6.6+9.04+3.4
3.1+0.46+9.54+3.98.37+6.04-3.37
8.1+4.01+1.9=8.1+____+4.01
(2.86+3.23)+6.77=____+(____+____)
31.36-3.9-6.1=____〇(____〇____)
7.85+3.1+4.96.65-3.3-1.7
4.24-3.4+5.760.6+0.45+0.55+29.4
3.3+5.8+1.57.03-1.76-3.24
12+6.8+8.3+690.48+4.04+3.96
0.61+7.12+5.390.06+6.8+5.94+3.2
0.8+4.75+1.25+8.26.31+1.98-1.31
7.8+7.59+2.2=7.8+____+7.59
(1.53+2.49)+6.51=____+(____+____)
35.79-6.3-3.7=____〇(____〇____)
9.89+3.9+3.18.84-2.5-1.5
6.07-1.8+2.9319.8+0.96+0.04+9.2
6.5+1.8+1.98.43-1.44-5.56
43+1.4+1.6+338.34+1.87+4.13
3.92+5.53+4.084.57+2.3+1.43+7.7
2.5+1.03+5.97+3.56.18+6.97-2.18
7.5+6.26+2.5=7.5+____+6.26
(3.52+4.11)+3.89=____+(____+____)
35.26-3.9-6.1=____〇(____〇____)
1.49+4.4+3.68.52-1.6-2.4
4.48-2.8+2.522.5+0.92+0.08+24.5
4.3+2.1+1.58.43-1.16-2.84
25+8.1+7.6+632.87+4.17+2.83
0.57+6.72+9.430.27+2.3+9.73+7.7
5.3+2.63+4.37+3.76.52+6.37-5.52
9.8+9.52+0.2=9.8+____+9.52
(9.68+3.14)+2.86=____+(____+____)
37.78-4.5-5.5=____〇(____〇____)
5.63+5.7+1.37.78-3.3-2.7
6.08-2.9+3.9212.8+0.26+0.74+12.2
4.9+1.7+8.58.34-1.03-5.97
85+1.8+9.1+594.49+5.43+1.57
2.14+2.71+3.861.03+4.1+8.97+5.9
2.7+1.45+3.55+7.37.86+2.94-4.86
7.7+2.85+2.3=7.7+____+2.85
(1.87+3.32)+4.68=____+(____+____)
34.32-1.7-8.3=____〇(____〇____)
4.16+2.9+5.16.88-1.2-4.8
6.52-3.7+0.489.3+0.36+0.64+16.7
3.6+1.6+8.49.05-3.31-1.69
44+3.8+5.9+686.79+3.82+2.18
5.21+3.54+3.790.48+4.8+6.52+5.2
2.7+4.69+5.31+3.39.47+0.21-8.47
4.5+8.79+5.5=4.5+____+8.79
(9.78+1.28)+4.72=____+(____+____)
35.75-8.6-1.4=____〇(____〇____)
5.83+1.1+7.99.05-3.4-0.6
5.47-2.9+4.5313.6+0.24+0.76+6.4
5.5+8.8+5.69.11-2.45-2.55
46+5.6+5.7+567.85+4.44+1.56
4.33+6.17+4.673.09+8.3+4.91+1.7
3.4+1.95+6.05+6.69.52+0.85-4.52