29×19+19×69+38的简便运算怎么做?

来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/14 02:56:47
29×19+19×69+38的简便运算怎么做?29×19+19×69+38的简便运算怎么做?29×19+19×69+38的简便运算怎么做?29×19+19×69+38=29×19+19×69+19×2

29×19+19×69+38的简便运算怎么做?
29×19+19×69+38的简便运算怎么做?

29×19+19×69+38的简便运算怎么做?
29×19+19×69+38
=29×19+19×69+19×2
=(29+69+2)×19
=100×19
=1900