Question

16×22-32简算

Answer 1

=16*22-22-10

=（16-1）*22-10

=15*22-10

=330-10

=320

或

16×22-32

=16×2×11-32

=32×(11-1)

=32×10

=320 都是先用分拆,再用乘法分配率进行简算的