0.54乘72.8加1.272乘54(用简便方法计算)
问题描述:
0.54乘72.8加1.272乘54(用简便方法计算)
答
0.54乘72.8加1.272乘54
=54乘0.728加1.272乘54
=54×(0.728+1.272)
=54×2
=108