4.23×1.08+0.423×9.2用简便方法计算
问题描述:
4.23×1.08+0.423×9.2用简便方法计算
答
4.23×1.08+0.423×9.2
=0.423×10.8+0.423×9.2
=0.423×(10.8+9.2)
=0.423×20
=8.46