35X9十42X9+23X9怎样简便就怎样计算?

2024-12-28 07:08:28
推荐回答(2个)
回答1:

35X9十42X9+23X9
=(35+42+23)x9
=100x9
=900

回答2:

32x9+42x9+23x9
=(32+42+23)x9
=97x9
=873
作用乘法结合律即可