Subtraction to 100
On this page children practise revising subtraction to 100 with regrouping and practising both take-away and difference strategies. Start with the short method and the examples, then use the online practice or print a worksheet with answers.
How to solve this
- Subtracting within 100 in grade 3 should be automatic — practise until you no longer need to count on fingers.
- Strategies: count up from the smaller to the larger number, or decompose and subtract tens then ones.
- Check by adding: answer + subtracted number must equal the starting number.
Examples
83 - 47 = ?
36
92 - 58 = ?
34
71 - 35 = ?
36
Practice problems with answers
Solve these problems on paper or out loud, then check the answer key. The online practice and the printable worksheet give a new set every time.
- 64 − 20 = ___
- 62 − 39 = ___
- 93 − 23 = ___
- 73 − 48 = ___
- 86 − 56 = ___
- 81 − 52 = ___
- 69 − 60 = ___
- 88 − 87 = ___
Show answers
- 44
- 23
- 70
- 25
- 30
- 29
- 9
- 1