45×12+12×58-3(脱式计算)(简便算法)

2024-05-06 06:02:52
推荐回答(5个)
回答1:

 

回答2:

45X12+12x58一3
=12x(45+58)一3
=12x103一3
=12x100+12x3-3
=1200+36一3
=1200+33
=1233

回答3:

 

回答4:

=12x(45+58-3)
=12x100
=1200

回答5:

45乘以(45+58-3)