Practice Problems — Set 17
1.OA.A.2 · Solve word problems that call for addition of three whole numbers who…
Print and write your answers. Use diagrams to show thinking.
Warm-up
1. Two-step: 5 red and 4 blue marbles, then lose 1. How many now? ___ 2. Compare: Team A 38 points, Team B 33. Difference? ___ 3. Draw a bar model for: 5 + 4 + 3
_See printable PDF for diagram._
Written practice
1. Two-step: 4 red and 6 blue marbles, then lose 3. How many now? ___ 2. Compare: Team A 37 points, Team B 32. Difference? ___ 3. Draw a bar model for: 4 + 6 + 4 4. Create your own word problem for 1.OA.A.2. 5. Does your answer make sense? Explain in one sentence. 6. Create a two-step word problem for 1.OA.A.2. 7. Two-step: 3 red and 6 blue marbles, then lose 3. How many now? ___ 8. Compare: Team A 40 points, Team B 35. Difference? ___
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More written practice
1. Draw a bar model for: 3 + 6 + 3 2. Two-step: 6 red and 6 blue marbles, then lose 3. How many now? ___ 3. Compare: Team A 43 points, Team B 38. Difference? ___ 4. Draw a bar model for: 6 + 6 + 4 5. Two-step: 5 red and 6 blue marbles, then lose 3. How many now? ___ 6. Compare: Team A 46 points, Team B 41. Difference? ___
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Patterns and rules
1. Two-step: 5 red and 5 blue marbles, then lose 2. How many now? ___ 2. Compare: Team A 54 points, Team B 49. Difference? ___ 3. Draw a bar model for: 5 + 5 + 3
_See printable PDF for diagram._
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Stretch
1. Create your own word problem for 1.OA.A.2. 2. Story: 4 birds land on a branch. 6 more join. How many now? ___
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Parent tip: Underline the question and key numbers