888x9+777x4用简便算怎么算

2024-12-27 00:06:04
推荐回答(2个)
回答1:

111×(8×9+7×4)=11100
具体:
888×9+777×4
=111×8×9+111×7×4
=111×72+111×28
=111×(72+28)
=111×100
=11100

回答2:

888×9+777×4
=111×8×9+111×7×4
=111×72+111×28
=111×(72+28)
=111×100
=11100