13.6-4.25-5.75+6.4简便运算
问题描述:
13.6-4.25-5.75+6.4简便运算
答
13.6-4.25-5.75+6.4
=(13.6+6.4)-(4.25+5.75)
=20-10
=10
答
13.6+6.4-(4.25+5.75)=20-10=10
答
13.6-4.25-5.75+6.4
=13.6+6.4-(4.25+5.75)
=20-10
=10