67x99= 88x125= 用简便计算

Question

如题所述

Answer 1

67x99= 67×（100-1）=6700-67=6633
88x125=8×125×11=1000×11=11000

Answer 2

67*100-67=6700-67=6633
100*125-12*125=12500-1500=11000

Answer 3

1.67*100-67＝6700-67＝6633
2.（80+8）*125＝80*125+8*125＝10000+1000＝11000

Answer 4

67*99=67*3*33=201*33=6633
88*125=8*125*11=1000*11=11000

Answer 5

=67×100-67
6700-67
6633追答

=11×8×125
11×1000
11000

Answer 6

67*100-67=6633 8*125*11=11000