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The mistakes behind most wrong answers
A wrong answer in rows and equal groups 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.
- 🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈🎈
How many altogether?
The answer is 20. A child who answers 4 probably counted one row and stopped.
- 🌸🌸🌸🌸
How many altogether?
The answer is 4. A child who answers 5 probably counted one too many or too few.
- 🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎
How many altogether?
The answer is 15. A child who answers 8 probably added the two sides instead of the rows.
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.