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Grade 6 HMH Go Math - Answer Keys
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Problem Solving + Applications
Question 15
(request help)
Sense or Nonsense Peter and Jade are using what they know about properties to write an expression equivalent to \(2\times(\text{n} + 6) + 3\). Whose answer makes sense? Whose answer is nonsense? Explain your reasoning.
Peter's Work
Expression : \(2\times(\text{n} + 6) + 3\)
Associative Property of Addition : \(2\times\text{n} + (6 + 3)\)
Add within parentheses : \(2\times\text{n} + 9\)
Multiply : \(2\text{n} + 9\)
Jade's Work
Expression : \(2\times(\text{n} + 6) + 3\)
Distributive Property : \((2\times\text{n}) + (2\times6) + 3\)
Multiply within parentheses : \(2\text{n} + 12 + 3\)
Associative Property of Addition : \(2\text{n} + (12 + 3)\)
Add within parentheses : \(2\text{n} + 15\)
For the answer that is nonsense, correct the statement.
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Question 16
(request help)
Write the algebraic expression in the box that shows an equivalent expression.
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