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Math You Like 16/09/2017 at 16:17
10 + 20 : 5 + 6 + 90 + 100
= 10 + 4 + 6 + 90 + 100
= (10 + 90) + (4 + 6) + 100
= 100 + 10 + 100
= 200 + 10
=210
10 + 20 : 5 + 6 + 90 + 100
= 10 + 4 + 6 + 90 + 100
= (10 + 90) + (4 + 6) + 100
= 100 + 10 + 100
= 200 + 10
=210