Year 3 Addition Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 3 addition worksheet.
Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · AdditionYear 3 Addition Worksheet — Level 1 — Practice Set 3 — Answers
Set out each sum in columns. Show any regrouping.
1.
45
+45
Answer: 90
- 5 + 5 = 10 → write 0, carry 1
- 4 + 4 + 1 = 9
2.
40
+58
Answer: 98
- 0 + 8 = 8
- 4 + 5 = 9
3.
26
+73
Answer: 99
- 6 + 3 = 9
- 2 + 7 = 9
4.
72
+20
Answer: 92
- 2 + 0 = 2
- 7 + 2 = 9
5.
39
+11
Answer: 50
- 9 + 1 = 10 → write 0, carry 1
- 3 + 1 + 1 = 5
6.
27
+30
Answer: 57
- 7 + 0 = 7
- 2 + 3 = 5
7.
31
+68
Answer: 99
- 1 + 8 = 9
- 3 + 6 = 9
8.
80
+17
Answer: 97
- 0 + 7 = 7
- 8 + 1 = 9
9.
79
+15
Answer: 94
- 9 + 5 = 14 → write 4, carry 1
- 7 + 1 + 1 = 9
10.
72
+25
Answer: 97
- 2 + 5 = 7
- 7 + 2 = 9
11.
25
+40
Answer: 65
- 5 + 0 = 5
- 2 + 4 = 6
12.
42
+39
Answer: 81
- 2 + 9 = 11 → write 1, carry 1
- 4 + 3 + 1 = 8
13.
50
+44
Answer: 94
- 0 + 4 = 4
- 5 + 4 = 9
14.
84
+13
Answer: 97
- 4 + 3 = 7
- 8 + 1 = 9
15.
30
+13
Answer: 43
- 0 + 3 = 3
- 3 + 1 = 4
16.
85
+10
Answer: 95
- 5 + 0 = 5
- 8 + 1 = 9
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