Question

77×9+11×37的简便方法？

Answer 1

77=11*7,11*(63+37)=1100

Answer 2

11*7*9+11*37=11*（63＋37）=11*100=1100

Answer 3

77×9+37×11=11+9×77×37 =20×(77 +37)=20×114=2280

Answer 4

（37+40）*9+11*37

Answer 5

11×9×7+11×37

追答

=11×(63+37)

=11×100=1100