Question

3.6÷0.4+1.25×5简便计算？

3.6÷0.4+1.25×5简便计算？必须jian' quan

Answer 1

3.6÷0.4+1.25×5
＝9+6.25
＝15.25
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Answer 2

3.6÷0.4-1.2×5
=(3.6*10)÷(0.4*10)-(1.2*10)/10×5
=36÷4-12/10×5
=9-6/5×5
=9-6
=3