题目内容
简算
| 0.25×32×0.125 | 101×3.6-3.6 | 0.96÷0.2÷50 | 9.9×2.4+0.24. |
考点:运算定律与简便运算
专题:运算定律及简算
分析:(1)化32=8×4,再运用乘法结合律解答,
(2)(4)运用乘法分配律解答,
(3)根据除法的性质:除以两个数等于除以两个数的积,由此解答.
(2)(4)运用乘法分配律解答,
(3)根据除法的性质:除以两个数等于除以两个数的积,由此解答.
解答:
解:(1)0.25×32×0.125
=0.25×4×8×0.125
=1×(8×0.125)
=1×1
=1
(2)101×3.6-3.6
=3.6×(101-1)
=3.6×100
=360
(3)0.96÷0.2÷50
=0.96÷(0.2×50)
=0.96÷10
=0.096
(4)9.9×2.4+0.24
=2.4×(9.9+0.1)
=2.4×10
=24.
=0.25×4×8×0.125
=1×(8×0.125)
=1×1
=1
(2)101×3.6-3.6
=3.6×(101-1)
=3.6×100
=360
(3)0.96÷0.2÷50
=0.96÷(0.2×50)
=0.96÷10
=0.096
(4)9.9×2.4+0.24
=2.4×(9.9+0.1)
=2.4×10
=24.
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
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