5.2✘75+2.5✘52简便计算方法?
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5.2×75+2.5×52
=52×7.5+2.5×52
=52×(7.5+2.5)
=52×10
=520
=52×7.5+2.5×52
=52×(7.5+2.5)
=52×10
=520
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你好
5.2×75+2.5Ⅹ52
=52Ⅹ7.5+2.5x52
=52x(7.5+2.5)
=52x10
=520
5.2×75+2.5Ⅹ52
=52Ⅹ7.5+2.5x52
=52x(7.5+2.5)
=52x10
=520
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5.2✘75+2.5✘52
=5.2✘75+2.5✘10✘5.2
=5.2✘75+25✘5.2
=5.2✘(75+25)
=5.2✘100
=520
=5.2✘75+2.5✘10✘5.2
=5.2✘75+25✘5.2
=5.2✘(75+25)
=5.2✘100
=520
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