Question

简便计算4.6×4.6+6.4×4.6-4.6

Answer 1

4.6*4.6+6.4*4.6-4.6
=4.6*4.6+6.4*4.6-4.6*1
=4.6*（4.6+6.4-1）
=4.6*10
=46