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3-Digit Addition with Regrouping Worksheets: practice on screen

Build three-digit sums across the ones, tens, and hundreds places. The middle level follows the worksheet sizes and regrouping. Easy uses friendlier values. Hard combines more groups, fills a missing addend, and tracks carries through longer totals.

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0 of 10 answered

  1. 1.Calculate 478 + 365.

  2. 2.Find the missing number: 739 + ___ = 878.

  3. 3.Find the addition that regroups in its tens column.

  4. 4.Complete the path to 1000: 725 + ___ = 1000.

  5. 5.Round 435 + 488 to the nearest hundred.

  6. 6.A pupil records 438 + 492 = 830. What is the correct sum?

  7. 7.A library receives 388 books in one box and 419 in another. How many books arrive?

  8. 8.What is 679 + 243?

  9. 9.A school orders 304 notebooks for one grade and 585 for another. How many notebooks are ordered?

  10. 10.Select the addition whose sum is nearest to 1000.

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