# Thursday, 10/24. Simplify: 3ab + 5a – (ab – 4ab) This problem addresses NYS Standard: AA.13 – Add and subtract monomials and polynomials Richard Mercado.

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Thursday, 10/24

Simplify: 3ab + 5a – (ab – 4ab) This problem addresses NYS Standard: AA.13 – Add and subtract monomials and polynomials Richard Mercado shared how you tackled this problem.

1 st : The ( ) is confusing. Let me get rid of it first.

2 nd : I use different shapes to show if they are like or unlike terms

3 rd : I want to use the Commutative property to solve problem.

In conclusion: AA.13 – Add and subtract monomials and polynomials the problem Simplify: 3ab + 5a – (ab – 4ab) is the same as 6ab + 5a [Take-away] Richard was able to solve this problem successfully b/c: (a)used 2 math properties he found in book. (b)used shapes as a visual aid