1.OA.A.2 Worksheets: Add Three Numbers in Word Problems
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1.OA.A.2 (Operations and Algebraic Thinking): Solve story problems that add three whole numbers with a sum of 20 or less.
About this standard
First graders solve story problems that add three whole numbers with a sum of 20 or less, using objects, drawings or an equation. A good habit is looking for two numbers that make 10 first, then adding the third. Start with Adding Three Numbers for the bare facts, then Word Problems With Three Numbers for the stories; for two-number problems see 1.OA.A.1.
