Three-Digit Subtraction With Regrouping
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Skill: Subtracting three-digit numbers with regrouping (borrowing)
10 versions, each with its own answer key
Same skill and layout, a fresh set of problems in every version, so children can keep practicing without repeating a page. Problems are not repeated between versions unless a skill has only a small number of possible problems (for example, the addition facts within 10).
- Version 1: Sheet · Key · Both
- Version 2: Sheet · Key · Both
- Version 3: Sheet · Key · Both
- Version 4: Sheet · Key · Both
- Version 5: Sheet · Key · Both
- Version 6: Sheet · Key · Both
- Version 7: Sheet · Key · Both
- Version 8: Sheet · Key · Both
- Version 9: Sheet · Key · Both
- Version 10: Sheet · Key · Both
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About this worksheet
Three-digit subtraction with regrouping asks students to keep track of hundreds, tens, and ones while trading between columns. When the top digit in a column is smaller than the digit below it, students regroup one ten as ten ones, or one hundred as ten tens. This second-grade worksheet gives sixteen vertical three-digit subtraction problems. Every problem needs regrouping in the ones column, the tens column, or both.
Each difference is at least 10, and every number stays below 1000, so students can still model the problems with base-ten blocks. Mixing problems that regroup once with problems that regroup twice builds flexible thinking instead of one memorized routine.
How to use it: have students look at each column before subtracting and ask, "Is the top digit big enough?" Base-ten blocks or quick sketches of hundreds flats, tens rods, and ones cubes make each trade visible. Cross out the digit that changes and write the new value above it. Encourage checking by adding the difference to the bottom number; the result should equal the top number.
The separate answer-key PDF lists every difference in order. A common mistake is subtracting the smaller digit from the bigger one in every column, so a difference that looks too large is a good clue. This worksheet supports Common Core standard 2.NBT.B.7 (add and subtract within 1000 using concrete models or drawings and strategies based on place value). Try it after our Three-Digit Addition With Regrouping worksheet.
