6.75乘2.4加42.5乘0.24减2又5分之2 简算!
问题描述:
6.75乘2.4加42.5乘0.24减2又5分之2 简算!
答
6.75×2.4+42.5×0.24-2又5分之2
=6.75×2.4+4.25×2.4-2.4
=(6.75+4.25-1)×2.4
=10×2.4
=24