Question

42-1.5✘2.4能简算吗？

Answer 1

这个不能够简单运算的，有乘法要先算乘法。
42－1.5×2.4＝42－3.6＝38.4
一般计算时，有括号先算括号里面的，然后按照先算乘除，再算加减顺序来就好了。
望采纳～

Answer 2

1.5*2.4可以变换为2.4÷2×3。这样就等于3.6。
42-3.6等于，42-4+0.4=38+0.4= 38.4

Answer 3

42-1.5×2.4
=42-0.3×(5×2.4)
=42-0.3×12
=42-3.6
=38.4

Answer 4

42−1.5×2.4
=3×14−3×(0.5×2.4)
=3×(14−1.2)
=3×12.8
=38.4

Answer 5

42-1.5×2.4=42-(1+0.5)×2.4=42-(1×2.4+0.5×2.4)=42-(2.4+1.2)=42-3.6=38+4-3.6=38.4
42-1.5×2.4
=42-2.4×1.5
=42-2.4×3/2
=42-3.6=38.4