4th Grade Addition Worksheet — Getting Started — Practice Set 3 — Answers
Answer sheet with worked solutions for the 4th Grade addition worksheet.
Success TutoringWorksheetsAnswer sheet4th Grade · Mathematics · Addition4th Grade Addition Worksheet — Getting Started — Practice Set 3 — Answers
Set out each sum in columns. Show any regrouping.
1.
342
+657
Answer: 999
- 2 + 7 = 9
- 4 + 5 = 9
- 3 + 6 = 9
2.
136
+614
Answer: 750
- 6 + 4 = 10 → write 0, carry 1
- 3 + 1 + 1 = 5
- 1 + 6 = 7
3.
533
+352
Answer: 885
- 3 + 2 = 5
- 3 + 5 = 8
- 5 + 3 = 8
4.
127
+216
Answer: 343
- 7 + 6 = 13 → write 3, carry 1
- 2 + 1 + 1 = 4
- 1 + 2 = 3
5.
434
+441
Answer: 875
- 4 + 1 = 5
- 3 + 4 = 7
- 4 + 4 = 8
6.
630
+155
Answer: 785
- 0 + 5 = 5
- 3 + 5 = 8
- 6 + 1 = 7
7.
644
+129
Answer: 773
- 4 + 9 = 13 → write 3, carry 1
- 4 + 2 + 1 = 7
- 6 + 1 = 7
8.
573
+426
Answer: 999
- 3 + 6 = 9
- 7 + 2 = 9
- 5 + 4 = 9
9.
694
+291
Answer: 985
- 4 + 1 = 5
- 9 + 9 = 18 → write 8, carry 1
- 6 + 2 + 1 = 9
10.
619
+316
Answer: 935
- 9 + 6 = 15 → write 5, carry 1
- 1 + 1 + 1 = 3
- 6 + 3 = 9
11.
232
+548
Answer: 780
- 2 + 8 = 10 → write 0, carry 1
- 3 + 4 + 1 = 8
- 2 + 5 = 7
12.
460
+539
Answer: 999
- 0 + 9 = 9
- 6 + 3 = 9
- 4 + 5 = 9
13.
210
+390
Answer: 600
- 0 + 0 = 0
- 1 + 9 = 10 → write 0, carry 1
- 2 + 3 + 1 = 6
14.
335
+290
Answer: 625
- 5 + 0 = 5
- 3 + 9 = 12 → write 2, carry 1
- 3 + 2 + 1 = 6
15.
206
+523
Answer: 729
- 6 + 3 = 9
- 0 + 2 = 2
- 2 + 5 = 7
16.
125
+700
Answer: 825
- 5 + 0 = 5
- 2 + 0 = 2
- 1 + 7 = 8
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.