Question

37乘65加25乘65加16乘38用简便方法怎么算?

Answer 1

37*65+25*65+16*38

=65*62+16*38

=65*62+（16+65-65）*38

=65*(38+62)-51*38

=65*100-（50+1）*2*19

=65*100-100*19-38

=4600-38

=4562