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32.4x3.9+0.2x32.4-3.24递等式计算简便计算
题目详情
32.4x3.9+0.2x32.4-3.24
递等式计算
简便计算
递等式计算
简便计算
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答案和解析
32.4x3.9+0.2x32.4-3.24
=32.4x3.9+0.2x32.4-32.4×0.1
=32.4×(3.9+0.2-0.1)
=32.4×4
=129.6
=32.4x3.9+0.2x32.4-32.4×0.1
=32.4×(3.9+0.2-0.1)
=32.4×4
=129.6
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