NAME ______________________________ DATE __________________
DAILY PRACTICE
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Write an equation that represents the problem. Solve each problem. Show your work.
1 Jake made the first part of a cube building.
He then added on 25 cubes.
Now his building has 50 cubes.
How many cubes did Jake start with? _______________
2 Jake takes 12 cubes from Kira's building.
Now her building has 45 cubes.
How many cubes did Kira's building start with? _______________
NOTE
Students solve addition and subtraction story problems where the starting amount is unknown.
MWI Equal Groups: Cube Buildings