
3.5×2.7-3.5×0.7+32.4×0.9+0.1×32.4简便运算
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3.5×2.7-3.5×0.7+32.4×0.9+0.1×32.4
=3.5x(2.7-0.7)+32.4x(0.9+0.1)
=3.5x2+32.4x1
=7+32.4
=39.4
=3.5x(2.7-0.7)+32.4x(0.9+0.1)
=3.5x2+32.4x1
=7+32.4
=39.4
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