3.125×7.4-3.125+0.36×31.25
问题描述:
3.125×7.4-3.125+0.36×31.25
3.125×7.4-3.125+0.36×31.25
答
我知道先给分
具体分到式子中是这样的 :3.125×7.4-3.125+(0.36×10)×(31.25÷10)
= 3.125×7.4-3.125+3.6×3.12
=(7.4-1+3.6)×3.12
=10×3.12=31.2算式是什么原式=3.125×7.4-3.125+(0.36×10)×(31.25÷10)
= 3.125×7.4-3.125+3.6×3.12
=(7.4-1+3.6)×3.12
=10×3.12
=31.2