125x(36 -9)的简便计算该怎么做?

2024-11-23 07:33:53
推荐回答(5个)
回答1:

你好朋友。
原式=125×36-125×9
=125×4×9-125×9
=500×9-125×9
=375×10-375
=3375

回答2:

125×(36-9)
简便计算列式:
=125×27)即先算出括号内“差”
=3375)再验算乘结果“积”

回答3:

原式=125x27
=125x(20十7)
=125x20十125×7
=2500+875
=3385

回答4:

125x(36 -9)
=125x(4x9-9)
=125x[(4-1)x9]
=125x3x9
=3375

回答5:

125×(36-9)
=125×27
=125×(8+8+8+3)
=125×8+125×8+125×8+125×3
=3000+375
=3375