48*1.08加上1.2*56.8
问题描述：
48*1.08加上1.2*56.8
必须要简算过程
答
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