小数加减乘除及简便计算习题.doc
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小数加减乘除及简便计算习题
一、课堂练习
3.56+4.54+6.44+5.465.03-0.25-1.75
4.86+5.24-1.868.13+(1.87-0.5)
23.7-1.6-3.7-8.487.4-(21.25+17.4)-8.75
14.6-9.91.9+1.99+1.999
19.43-(6.72+1.43)2.69-1.35+3.31-2.65
17.28-3.86-6.14+2.725.25+3.76-2.76+4.75
4.5+5.5-4.5+5.521.53-(13.64-8.47)
28.49-1.1-2.47-6.437.34+2.5+2.66-1.5
3.25+1.79-0.59+1.753.79-1.225-(3.775-6.21)
二、课后练习
4.12+8.59+5.88+1.4112.87-1.34-2.66
21.53+4.87-2.5315.21+(4.79-2.8)
12.19-2.6-2.19-3.4109.72-(5.62+9.72)
21.3-19.939.6-(18.31+9.6)-1.69
14.25-2.45+5.75-3.5524.51-3.14-6.86+4.49
41.25+5.87-3.87+4.6511.5+8.5-11.5+8.5
8.13-(12.25-11.87)34.34-2.1-2.35-5.55
81.67+4.17+4.33-2.171.35+12.87-1.37+8.65
15.51-3.334-(2.666-4.49)21.62-4.35+8.38-5.65
小数乘除法简便计算
一、课堂练习
0.125×3.69×8(2.5-0.25)×4
8.59×1010.36×15.7-0.36×13.7
5.64×1.28+8.72×5.640.63×199
60÷487.73×0.5+2.27÷2
4.37+99×4.3710.1×38.67-3.867
9.9÷5.58.63×25-0.063×250
9.3×10.13.99÷0.125÷8
0.99×0.81+0.11×9×0.19(5.23+5.23+5.23+5.23)×25
0.25×1.25×0.67×322.49×3.8+0.249×62
33.41÷4-3.41×0.2554.8-0.3×0.3-3.91
(6.4+48)÷0.815×9.7
2.5×(4+8)×12.5
二、课后练习
0.25×8×2.12(12.5-1.25)×8
5.7×18.34-57×0.8343.87×4.12+5.88×3.87
8.8÷5.53.25×199
5.64+99×5.6420.1×35.22-3.522
5.2×20.13.7×1.63-0.37×15.3
0.88×0.78+0.11×0.22×0.82.5×(4.21+4.21+8.42)
1.25×1.86×32×0.254.34×0.25+0.25×5.56+0.025
(7.2+54)÷0.92.73×0.125+7.27÷8
56.34÷2-6.34×0.511.43÷0.8÷12.5
12×19.821.56-0.4×0.4-3.84
80÷327.56×101
1.25×2.5×(8+4)
4