More sheets come with a subscription
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.
$5 a child a month, never more than $12 for the family. The first 7 days are free and need no card.
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The mistakes behind most wrong answers
A wrong answer in mixed numbers 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.
- 41012+51112=?
The answer is 10912. A child who answers 10924 probably changed the bottom number too.
- 4712+1612=?
The answer is 6112. A child who answers 3112 probably took away instead of adding.
- 2910+5710=?
The answer is 8610. A child who answers 71610 probably forgot to carry.
- 416+126=?
The answer is 536. A child who answers 546 probably counted one too many or too few.
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.