3.5×3.7+5.6×3.7简便运算
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3.5×3.7+5.6×3.7
=3.7×(3.5+5.6)
=3.7×9.1
=3.7×9+3.7×0.1
=33.3+0.37
=33.67
=3.7×(3.5+5.6)
=3.7×9.1
=3.7×9+3.7×0.1
=33.3+0.37
=33.67
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