Question

151×50分之49怎么简算？

Answer 1

解:

原式

=(150+1)x49/50

=150x49/50+1x49/50

=3x49+49/50

=147+49/50

=147又49/50

方法:

构造后利用乘法分配律实现简便计算。

Answer 2

151x49／50
＝（150十l）x49／50
＝150x49／50十1x49／50
＝147十49／50
＝141（49／50）

Answer 3

151x49/50=（150+1）x49/50
=147+49/50
=147又49/50

Answer 4

151x50分之49＝151x49/50
=（150+1）x49/50
=150x49/50＋1x49/50
=147+49/50
=147又49/50

Answer 5

=(150+1)x49/50
=150x49/50+1x49/50
=3x49+49/50
=147+49/50
=147又49/50