Question

13.157+26.15-13.87

 

Answer 1

13 x 157 + 26 x 15 - 13 x 87

= 13 x 157 + 13 x (2 x 15) - 13 x 87

= 13 x 157 + 13 x 30 - 13 x 87

= 13 x (157 + 30 - 87)

= 13 x 100

= 1300

Answer 2

\(13.157+26.15-13.87\)

= ?????

= ko  hiểu

Answer 3

13x157+26x15-13x87

Answer 4

\(13.157+26.15-13.87\)

\(=13.\left(157-87\right)+26.15\)

\(=13.70+26.15\)

\(=910+390\)

\(=1300\)