## Student Work

## Work Time

# Student Work

The image shows four expressions that Sophie, Jack, Kevin, and Marcus wrote for the perimeter of the rectangle that is 100 tiles long.

- Which three expressions are correct?
- Are the three correct expressions equivalent? Explain.
- What is an expression for the perimeter that has only one term?

## Hint:

- Are any of the four expressions equivalent to the expression you wrote?
- Think about how you might use properties of operations (associative, commutative, and distributive) to identify equivalent expressions.
- Look for an expression with only one term. Can you write it in a simpler way?