48*1.08加上1.2*56.8 必须要简算过程

2025-02-22 11:32:08
推荐回答(1个)
回答1:

48×1.08+1.2×56.8
=1.2×43.2+1.2×56.8
=1.2×(43.2+56.8)
=1.2×100
=120