1.3÷0.9+1.5÷0.9+1.7÷0.9 简便计算
问题描述:
1.3÷0.9+1.5÷0.9+1.7÷0.9 简便计算
答
1.3÷0.9+1.5÷0.9+1.7÷0.9
=(1.3+1.5+1.7)÷0.9
=4.5÷0.9
=5还能帮我做道题嘛?也是简便计算7.25-3又3/7+3.75-6又4/77.25-3又3/7+3.75-6又4/7=(7.25+3.75)-(3又3/7+6又4/7)=11-10=1