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G4 - 3.1 Write Expressions and Number Sentences
3.1 Write Expressions and Number Sentences

Hector is 157 centimeters tall, and his brother Sam is 137 centimeters tall. How much taller is Hector than Sam?
Select the number sentence that solves the problem.

157 + 137 = 294
157 - 137 = 20
137 + 20 = 157
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