7.6 - 1.8 + 2.4 - 8.2 简便计算
问题描述:
7.6 - 1.8 + 2.4 - 8.2 简便计算
答
7.6 - 1.8 + 2.4 - 8.2
=(7.6+2.4)-(1.8+8.2)
=10-10
=0
答
7.6 - 1.8 + 2.4 - 8.2
= 7.6 + 2.4 - 1.8 - 8.2
= (7.6 + 2.4) - (1.8 +8.2 )
=10-10
=0