3rd Grade Addition and Subtraction Word Problems Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the 3rd Grade problem solving & word problems worksheet.
Success TutoringWorksheetsAnswer sheet3rd Grade · Mathematics · Problem Solving & Word Problems3rd Grade Addition and Subtraction Word Problems Worksheet — Level 1 — Answers
Read each problem carefully. Decide whether to add or subtract, show your work and write the answer with units.
1.Noah collected 12 marbles on Monday and 8 marbles on Tuesday. How many marbles did Noah collect altogether?
Answer: 20 marbles
- 12 + 8 = 20
2.Olivia had 12 marbles and gave 10 to Mia. How many marbles does Olivia have left?
Answer: 2 marbles
- 12 − 10 = 2
3.Mia had 11 blocks and gave 6 to Kai. How many blocks does Mia have left?
Answer: 5 blocks
- 11 − 6 = 5
4.Sienna collected 7 marbles on Monday and 9 marbles on Tuesday. How many marbles did Sienna collect altogether?
Answer: 16 marbles
- 7 + 9 = 16
5.Harper has 14 blocks. Emma gives Harper 2 more. How many blocks does Harper have now?
Answer: 16 blocks
- 14 + 2 = 16
6.Chloe had 5 cards and gave 4 to Cooper. How many cards does Chloe have left?
Answer: 1 cards
- 5 − 4 = 1
7.Mason collected 12 apples on Monday and 1 apples on Tuesday. How many apples did Mason collect altogether?
Answer: 13 apples
- 12 + 1 = 13
8.Tom has 5 shells. Cooper gives Tom 2 more. How many shells does Tom have now?
Answer: 7 shells
- 5 + 2 = 7
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.
Great work. Here's what to try next: