Practice Problems — Set 20
3.OA.A.3 · Use multiplication and division within 100 to solve word problems in…
Print and write your answers. Use diagrams to show thinking.
Warm-up
1. Two-step: 6 red and 6 blue marbles, then lose 1. How many now? ___ 2. Compare: Team A 41 points, Team B 36. Difference? ___ 3. Draw a bar model for: 6 + 6 + 4
_See printable PDF for diagram._
Written practice
1. Two-step: 5 red and 8 blue marbles, then lose 3. How many now? ___ 2. Compare: Team A 40 points, Team B 35. Difference? ___ 3. Draw a bar model for: 5 + 8 + 3 4. Two-step: 5 red and 8 blue marbles, then lose 3. How many now? ___ 5. Does your answer make sense? Explain in one sentence. 6. Create a two-step word problem for 3.OA.A.3. 7. Two-step: 8 red and 8 blue marbles, then lose 3. How many now? ___ 8. Compare: Team A 43 points, Team B 38. Difference? ___
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More written practice
1. Draw a bar model for: 8 + 8 + 4 2. Two-step: 7 red and 8 blue marbles, then lose 3. How many now? ___ 3. Compare: Team A 46 points, Team B 41. Difference? ___ 4. Draw a bar model for: 7 + 8 + 3 5. Two-step: 6 red and 8 blue marbles, then lose 3. How many now? ___ 6. Compare: Team A 49 points, Team B 44. Difference? ___
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Patterns and rules
1. Two-step: 6 red and 7 blue marbles, then lose 2. How many now? ___ 2. Compare: Team A 57 points, Team B 52. Difference? ___ 3. Draw a bar model for: 6 + 7 + 4
_See printable PDF for diagram._
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Stretch
1. Two-step: 5 red and 8 blue marbles, then lose 3. How many now? ___ 2. Word problem: 5 stickers plus 8 more. Total? ___
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Parent tip: Underline the question and key numbers