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用简便方法计算:32×0.65+3.2×3.5
人气:250 ℃ 时间:2019-09-23 14:01:20
解答
32×0.65+3.2×3.5
=3.2×6.5+3.2×3.5
=3.2x(6.5+3.5)
=3.2x10
=32
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