Practice Problems — Set 7
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: 3 red and 6 blue marbles, then lose 3. How many now? ___ 2. Compare: Team A 28 points, Team B 23. Difference? ___ 3. Draw a bar model for: 3 + 6 + 3
_See printable PDF for diagram._
Written practice
1. Two-step: 6 red and 5 blue marbles, then lose 2. How many now? ___ 2. Compare: Team A 27 points, Team B 22. Difference? ___ 3. Draw a bar model for: 6 + 5 + 4 4. Story: 11 cookies on a plate. Eat 5. How many left? ___ 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: 5 red and 5 blue marbles, then lose 2. How many now? ___ 8. Compare: Team A 30 points, Team B 25. Difference? ___
___________________________ ___________________________ ___________________________ ___________________________
More written practice
1. Draw a bar model for: 5 + 5 + 3 2. Two-step: 4 red and 5 blue marbles, then lose 2. How many now? ___ 3. Compare: Team A 33 points, Team B 28. Difference? ___ 4. Draw a bar model for: 4 + 5 + 4 5. Two-step: 3 red and 5 blue marbles, then lose 2. How many now? ___ 6. Compare: Team A 36 points, Team B 31. Difference? ___
___________________________ ___________________________ ___________________________ ___________________________ ___________________________
Patterns and rules
1. Two-step: 3 red and 4 blue marbles, then lose 1. How many now? ___ 2. Compare: Team A 44 points, Team B 39. Difference? ___ 3. Draw a bar model for: 3 + 4 + 3
_See printable PDF for diagram._
___________________________ ___________________________ ___________________________ ___________________________
Parent tip: Underline the question and key numbers