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The first sheet at every level is free. A subscription gives you a new sheet whenever you want one — and the part paper cannot do: five minutes of practice a day that adapts to your child, and a weekly email naming exactly what they are stuck on.
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The mistakes behind most wrong answers
A wrong answer in word problems 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.
Lucas has 2 buttons and gets 3 more. How many now?
The answer is 5. A child who answers 6 probably counted one too many or too few.
Noah has 2 shells and gets 5 more. How many now?
The answer is 7. A child who answers 3 probably took away instead of adding.
Ava has 4 blocks and gets 1 more. How many now?
The answer is 5. A child who answers 4 probably answered with one of the numbers shown.
Ava has 7 blocks and gives away 1. How many are left?
The answer is 6. A child who answers 8 probably added instead of taking away.
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.