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Year 3 Addition Worksheet — Getting Started — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 3 addition worksheet.

Success TutoringWorksheetsAnswer sheetYear 3 · Mathematics · Addition

Year 3 Addition Worksheet — Getting Started — Practice Set 3 — Answers

Set out each sum in columns. Show any regrouping.

1.
75
+10

Answer: 85

  1. 5 + 0 = 5
  2. 7 + 1 = 8
2.
24
+75

Answer: 99

  1. 4 + 5 = 9
  2. 2 + 7 = 9
3.
79
+20

Answer: 99

  1. 9 + 0 = 9
  2. 7 + 2 = 9
4.
58
+30

Answer: 88

  1. 8 + 0 = 8
  2. 5 + 3 = 8
5.
53
+14

Answer: 67

  1. 3 + 4 = 7
  2. 5 + 1 = 6
6.
80
+18

Answer: 98

  1. 0 + 8 = 8
  2. 8 + 1 = 9
7.
50
+49

Answer: 99

  1. 0 + 9 = 9
  2. 5 + 4 = 9
8.
45
+42

Answer: 87

  1. 5 + 2 = 7
  2. 4 + 4 = 8
9.
62
+13

Answer: 75

  1. 2 + 3 = 5
  2. 6 + 1 = 7
10.
88
+11

Answer: 99

  1. 8 + 1 = 9
  2. 8 + 1 = 9
11.
50
+13

Answer: 63

  1. 0 + 3 = 3
  2. 5 + 1 = 6
12.
73
+15

Answer: 88

  1. 3 + 5 = 8
  2. 7 + 1 = 8
13.
36
+46

Answer: 82

  1. 6 + 6 = 12 → write 2, carry 1
  2. 3 + 4 + 1 = 8
14.
51
+17

Answer: 68

  1. 1 + 7 = 8
  2. 5 + 1 = 6
15.
66
+33

Answer: 99

  1. 6 + 3 = 9
  2. 6 + 3 = 9
16.
51
+48

Answer: 99

  1. 1 + 8 = 9
  2. 5 + 4 = 9
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