NY-3.OA.8.a

Represent these problems using equations or expressions with a letter standing for the unknown quantity.

Example Problems
Write an equation to describe this situation:
Larry read a
400-page book.
He read at a rate of
10 pages per day for days.
Write an equation to describe this situation:
Simone completed a
720-lap swimming challenge.
She swam
24 laps per day for days.
Write an equation to describe this situation:
Mia completed a
500-piece puzzle.
She worked at a rate of
25 pieces per day for days.
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