Question

28.4×9.6+9.6×71.6简便算法？

Answer 1

28.4*9.6+9.6*71.6
=9.6(28.4+71.6)
=9.6*100
=960

Answer 2

28.4×9.6+9.6×71.6
=(28.4+71.6)×9.6
=100×9.6
=960

Answer 3

9.6×（28.4+71.6）
=9.6×100
=960

Answer 4

9.6×（28.4+71.6）
＝9.6×100
＝960

Answer 5

28.4×9.6+9.6×71.6=（28.4+71.6）×9.6=100×9.6=960