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This Addition With Regrouping drill has 40 problems for Grade 2. Bees theme. Answer key included.
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Max discovered the bee colony's golden honeycomb is cracking! He must solve addition problems fast before honey spills everywhere!
Standard: CCSS.MATH.2.NBT.B.5
Addition with regrouping is a crucial stepping stone in your second grader's math journey because it moves them beyond simple, single-digit facts into real problem-solving. When students tackle problems like 27 + 15, they learn that numbers can be broken apart and reassembled—a concept that builds the foundation for all future multi-digit operations. At ages 7-8, children's brains are developing stronger working memory and abstract thinking skills, making this the ideal time to cement these strategies. Mastery of regrouping also builds confidence and reduces math anxiety; students who understand *why* they carry the one feel empowered rather than confused. This skill directly connects to everyday situations like counting allowance money, tracking points in games, or combining collections—making math feel real and purposeful.
The most common error is forgetting to regroup entirely—a student adds 18 + 14 and writes 312 by adding ones and tens separately without recognizing that 8 + 4 makes 12. Another frequent pattern is regrouping correctly but then forgetting to add the carried ten to the tens column, resulting in an answer like 22 instead of 32. Watch for students who write the full sum in the ones place (18 + 14 = 212) or who physically lose track of where they carried and add it twice. These mistakes reveal whether the student understands *place value*, not just the mechanical steps.
Practice regrouping with real objects your child can touch and move. Use 20-30 small items like coins, buttons, or dried beans, and have your child group them into tens and ones, then combine two groups and regroup the result. For example: make one pile of 17 items and one pile of 16, push them together, then count out groups of ten—they'll physically see why 17 + 16 needs regrouping before getting the answer 33. This concrete experience makes the abstract tens-and-ones idea click faster than worksheets alone.