Horizontal subtraction to 20, with regrouping
- Age
- Ages 6–7
Subtraction with regrouping worksheets
For 52 − 27, exchange one of the five tens for ten ones, leaving four tens and twelve ones.
Ready to print 2 printables
Try an example
For 52 − 27, exchange one of the five tens for ten ones, leaving four tens and twelve ones. Subtract 12 − 7 = 5 and 4 − 2 = 2. The answer is 25.
What to check
Update both affected columns: increasing the ones also reduces the tens. Check with 25 + 27 = 52. If your classroom uses a different written regrouping method, keep its notation consistent throughout the calculation.
Explain and check
Work through one example aloud before independent practice. To check 18 + 7 = 25, calculate 25 − 7. If a word problem asks about meters or coins, include that unit and check whether the answer fits the situation.