Question by longia - Discuss with MathYouLike

longia

28/08/2017 at 15:02

10 + 20 + 60 + 40 + 80 + 90=?

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Help you solve math 28/08/2017 at 15:06

1^st way :10 + 20 + 60 + 40 + 80 + 90

=(1 + 2 + 6 + 4 + 8 + 9) x 10

=30 x 10

=300

2^ndway :10 + 20 + 60 + 40 + 80 + 90

=(10 + 90) + (20 + 80) + (60 + 40)

=100 + 100 + 100

=100 x 3

=300
longia selected this answer.
I like math 28/08/2017 at 18:03

10+20+60+40+80+90

=(10+90)+(20+80)+(60+40)

=100+100+100

=300
longia 28/08/2017 at 15:08

thank you

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