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  Tuesday, May 9, 2017

ASA Mathematical Problem Solving

By Ariel Arsac-Ellison

In the Math Problem Solving ASA this week we thought about sharing cookies evenly among 9 children, and figured out properties of remainders (les restes) when numbers are added or multiplied.  After solving the problems on the worksheet below, we deduced the rule for deciding if a number is divisible by 9, without doing the division.

Having learned how to do this kind of problem fast, we divided into two teams and competed to solve a sequence of speed problems.

02nines 5.3.17