七点二加八点一的和除以九用简便方法计算
问题描述:
七点二加八点一的和除以九用简便方法计算
答
(7.2+8.1)÷9
=7.2÷9+8.1÷9
=0.8+0.9
=1.7
七点二加八点一的和除以九用简便方法计算
(7.2+8.1)÷9
=7.2÷9+8.1÷9
=0.8+0.9
=1.7