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Year 2 Mental Addition and Subtraction Strategies Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 2 addition worksheet.

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Success TutoringWorksheetsAnswer sheetYear 2 · Mathematics · Addition

Year 2 Mental Addition and Subtraction Strategies Worksheet — Level 1 — Practice Set 3 — Answers

Fill in each step of the strategy, then write the answer.

1.7 + 7 = 7 + 3 + (answer space) = (answer space)

Answer: 4, 14

  1. 7 + 3 = 10 (a ten)
  2. 10 + 4 = 14
2.7 + 4 = 7 + 3 + (answer space) = (answer space)

Answer: 1, 11

  1. 7 + 3 = 10 (a ten)
  2. 10 + 1 = 11
3.8 + 7 = (answer space) + (answer space) + 1 = (answer space)

Answer: 7, 7, 15

  1. Double 7 is 14
  2. 14 + 1 = 15
4.9 + 5 = 9 + 1 + (answer space) = (answer space)

Answer: 4, 14

  1. 9 + 1 = 10 (a ten)
  2. 10 + 4 = 14
5.6 + 9 = 6 + 4 + (answer space) = (answer space)

Answer: 5, 15

  1. 6 + 4 = 10 (a ten)
  2. 10 + 5 = 15
6.7 + 8 = (answer space) + (answer space) + 1 = (answer space)

Answer: 7, 7, 15

  1. Double 7 is 14
  2. 14 + 1 = 15
7.8 + 4 = 8 + 2 + (answer space) = (answer space)

Answer: 2, 12

  1. 8 + 2 = 10 (a ten)
  2. 10 + 2 = 12
8.9 + 3 = 9 + 1 + (answer space) = (answer space)

Answer: 2, 12

  1. 9 + 1 = 10 (a ten)
  2. 10 + 2 = 12
9.4 + 5 = (answer space) + (answer space) + 1 = (answer space)

Answer: 4, 4, 9

  1. Double 4 is 8
  2. 8 + 1 = 9
10.6 + 6 = 6 + 4 + (answer space) = (answer space)

Answer: 2, 12

  1. 6 + 4 = 10 (a ten)
  2. 10 + 2 = 12
11.9 + 8 = 9 + 1 + (answer space) = (answer space)

Answer: 7, 17

  1. 9 + 1 = 10 (a ten)
  2. 10 + 7 = 17
12.9 + 8 = (answer space) + (answer space) + 1 = (answer space)

Answer: 8, 8, 17

  1. Double 8 is 16
  2. 16 + 1 = 17
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