Question

5.6×(32.4-14.8)加5.6×82.4的简便计算？

Answer 1

5.6×(32.4－14.8)+5.6×82.4
=5.6×(32.4－14.8+82.4)
=5.6×100
=560

Answer 2

5.6×（32.4-14.8）+5.6×82.4
=5.6×（32.4-14.8+82.4）
=5.6×（32.4+82.4-14.8）
=5.6×（114.8-14.8）
=5.6×100
=560

Answer 3

5.6*（32.4-14.8）+5.6*82.4

=5.6*（32.4-14.8+82.4）

=5.6*100

=560

用到的简便计算方法是加法结合律，合并同类项。