如图所示
6.6x9十11x4.6
=11×0.6x9十11x4.6
=11×(5.4十4.6)
=11x10
=110
6.6x9+11x4.6
=11x(0.6x9+4.6)
=11x(5.4+4.6)
=11x10
=110
原式
=11(0.6×9+4.6)
=11(5.4+4.6)
=11×10
=110
解:
方法1:
原式
=11x0.6x9+11x4.6
=11x5.4+11x4.6
=11x(5.4+4.6)
=11x10
=110
方法2:
原
=(4.6+2)x9+4.6x11
=4.6x9+2x9+4.6x11
=4.6x(9+11)+2x9
=4.6x20+18
=92+18
=110