Question by Hương Yêu Dấu - Discuss with MathYouLike

Hương Yêu Dấu

09/09/2017 at 16:07

10 + 10 + 10 + 20 + 20 + 20 + 30 + 30 + 30=?

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Math You Like 09/09/2017 at 16:14

10 + 10 + 10 + 20 + 20 + 20 + 30 + 30 + 30

=10 x 3 + 20 x 3 + 30 x 3

=(10 + 20 + 30) x 3

=60 x 3

=180

=
Hương Yêu Dấu selected this answer.
Yuki Judai 09/09/2017 at 18:48

10+10+10+20+20+20+30+30+30=160

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