题目内容
= | 728÷7= | = | = | 4.6×0.5= |
= | = | = | 0.7+0.4= | 60×500= |
解:=3.7, | 728÷7=104, | =, | =0.9, | 4.6×0.5=2.3, |
=, | =, | =2, | 0.7+0.4=1.1, | 60×500=30000; |
分析:利用连续减去两个数等于减去这两个数的和,其它题目根据运算法则直接求解.
点评:本题考查了基本的运算,要注意分析数据,选择合适的简算方法计算.
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题目内容
= | 728÷7= | = | = | 4.6×0.5= |
= | = | = | 0.7+0.4= | 60×500= |
解:=3.7, | 728÷7=104, | =, | =0.9, | 4.6×0.5=2.3, |
=, | =, | =2, | 0.7+0.4=1.1, | 60×500=30000; |