12.5×3.2、(30.6+1.08)÷0.9、0.35×14的第等式计算_数学解答

12.5×3.2、(30.6+1.08)÷0.9、0.35×14的第等式计算

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解答

12.5×3.2
=12.5x8x0.4
=100x0.4
=40
(30.6+1.08)÷0.9
=30.6÷0.9+1.08÷0.9
=34+1.2
=35.2
0.35×14
=0.35x2x7
=0.7x7
=4.9