Two-digit ± two-digit, with regrouping
Two-digit ± two-digit, with regrouping helps children practise adding and subtracting two-digit numbers where tens must be regrouped — the core skill of grade-2 arithmetic. Read the short guide and look through the examples before choosing online practice or a printable worksheet.
How to solve this
- Adding or subtracting two-digit numbers with regrouping means ones can cross a ten boundary.
- Add ones first; if the sum is 10 or more, carry 1 ten and add the tens separately. For subtraction, borrow when necessary.
- Check by adding the answer to the smaller number — if you subtracted — you should get the larger number back.
Examples
46 + 7 = ?
53
82 - 25 = ?
57
34 + 21 = ?
55