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This Subtraction No Borrowing drill has 40 problems for Grade 2. Sandwiches theme. Answer key included.
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Max's sandwich shop is closing soon! He must subtract orders from his ingredient piles before lunchtime rush hits.
Standard: CCSS.MATH.2.NBT.B.5
Subtraction without borrowing is a critical stepping stone in your second grader's math journey because it builds confidence and automaticity with smaller numbers before tackling more complex regrouping. At ages 7-8, children are developing their number sense and learning to visualize quantities, so mastering subtraction where the ones digit in the minuend is larger than the ones digit in the subtrahend strengthens their mental math skills. This skill appears daily in real life—when you have 37 crackers and use 14 for sandwiches, you subtract without needing to regroup. By drilling these problems, students internalize fact families and develop faster recall, which frees up mental energy for word problems and multi-step thinking. This foundation also prevents anxiety around subtraction, making kids feel capable mathematicians.
The most common error is students automatically trying to borrow or regroup even when the ones place doesn't require it—for example, solving 37 − 14 by incorrectly regrouping the 3 tens. Another frequent mistake is lining up digits incorrectly, putting ones under tens or vice versa, which causes calculation errors. Watch for students who know single-digit subtraction facts but struggle to apply them to the ones column of a two-digit problem. If a child hesitates or uses fingers excessively on every problem, they may not have automaticity with basic facts and need more single-digit drill before progressing.
Play a simple "subtraction store" game at home using objects like coins, crackers, or toys. Give your child 42 items and ask them to "sell" 21 items, then count what's left—they'll physically see that no regrouping happens because 2 ones remain after taking away 1 one. Repeat with different two-digit numbers where the ones digit is always larger in the starting amount. This concrete experience makes the abstract algorithm stick and helps them recognize the pattern of "no borrowing" across problems.