Counting in twos, fives and tens
Grade 1 · Level 3 · Sheet 1the answers
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- 1.
Count by 2s. What is missing?
242628? - 2.
Count by 2s. What is missing?
1416?20 - 3.
Count by 2s. What is missing?
2022?26 - 4.
Count by 2s. What is missing?
2?68 - 5.
Count by 2s. What is missing?
1820?24 - 6.
Count by 2s. What is missing?
121416? - 7.
Count by 2s. What is missing?
22?2628 - 8.
Count by 2s. What is missing?
161820? - 9.
Count by 2s. What is missing?
10?1416 - 10.
Count by 2s. What is missing?
283032? - 11.
Count by 2s. What is missing?
3234?38 - 12.
Count by 2s. What is missing?
4?810
Show the answer key
- 1.30
- 2.18
- 3.24
- 4.4
- 5.22
- 6.18
- 7.24
- 8.22
- 9.12
- 10.34
- 11.36
- 12.6
Answer key · Counting in twos, fives and tens · Level 3 · Sheet 1
- 1.30
- 2.18
- 3.24
- 4.4
- 5.22
- 6.18
- 7.24
- 8.22
- 9.12
- 10.34
- 11.36
- 12.6
The mistakes behind most wrong answers
A wrong answer in counting in twos, fives and tens is rarely random. These are the ones that come up most often, each on a real problem — worth knowing before you mark a sheet, because the fix for each is different.
Count by 2s. What is missing?
323436?The answer is 38. A child who answers 37 probably counted one too many or too few.
Count by 2s. What is missing?
8?1214The answer is 10. A child who answers 12 probably counted the last one twice.
Count by 2s. What is missing?
34?3840The answer is 36. A child who answers 34 probably started counting from the wrong number.
In the app, every wrong answer is matched against mistakes like these, and the weekly email tells you which one your child keeps making — in those words, not as a percentage.