17.4*2.43-2.43*7.4简便运算
问题描述:
17.4*2.43-2.43*7.4简便运算
答
=2.43*(17.4-7.4)
=2.43*10
=24.3
17.4*2.43-2.43*7.4简便运算
=2.43*(17.4-7.4)
=2.43*10
=24.3