Counting by 5s, 10s and 100s
Grade 2 · Level 3 · Sheet 1the answers
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- 1.
Count by 100s. What is missing?
500600700? - 2.
Count by 100s. What is missing?
300400?600 - 3.
Count by 100s. What is missing?
400500600? - 4.
Count by 100s. What is missing?
100?300400 - 5.
Count by 100s. What is missing?
700?9001,000 - 6.
Count by 100s. What is missing?
200300?500 - 7.
Count by 100s. What is missing?
600700800? - 8.
Count by 100s. What is missing?
400500?700 - 9.
Count by 100s. What is missing?
300?500600 - 10.
Count by 100s. What is missing?
300?500600 - 11.
Count by 100s. What is missing?
700?9001,000 - 12.
Count by 100s. What is missing?
100200?400
Show the answer key
- 1.800
- 2.500
- 3.700
- 4.200
- 5.800
- 6.400
- 7.900
- 8.600
- 9.400
- 10.400
- 11.800
- 12.300
Answer key · Counting by 5s, 10s and 100s · Level 3 · Sheet 1
- 1.800
- 2.500
- 3.700
- 4.200
- 5.800
- 6.400
- 7.900
- 8.600
- 9.400
- 10.400
- 11.800
- 12.300
The mistakes behind most wrong answers
A wrong answer in counting by 5s, 10s and 100s 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 100s. What is missing?
700800900?The answer is 1,000. A child who answers 901 probably counted one too many or too few.
Count by 100s. What is missing?
200?400500The answer is 300. A child who answers 400 probably counted the last one twice.
Count by 100s. What is missing?
300400500?The answer is 600. A child who answers 300 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.