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Math You Like 04/09/2017 at 14:56450 + 20 + 50 + 80 + 100
=(450 + 50) + (20 + 80) + 100
=500 + 100 + 100
=700
Kaya Rengest selected this answer. -
Kaya Rengest 04/09/2017 at 15:14Thank you. You are very good