About this worksheet
Afterwards, set Regrouping to "Some problems" so children must check the ones column before deciding to borrow, then move to three digits, where borrowing across a zero appears.
Standards
- Common Core 2.NBT.B.5 — fluently subtract within 100 using place-value strategies
- Common Core 2.NBT.B.9 — explain why addition and subtraction strategies work
Questions
Is it "borrowing" or "regrouping"?
Same step. "Regrouping" is the current textbook term in the US; "borrowing" is what most parents learned and what the UK still says ("exchanging" in some schools).
Can the answer be zero or negative?
No. The top number is always larger, so every answer is at least 1.