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This Mixed Add Subtract drill has 40 problems for Grade 2. First Day Of Winter theme. Answer key included.
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Max discovered lost animals freezing in the first-day-of-winter blizzard. He must solve math problems to unlock their warm shelters fast!
Standard: CCSS.MATH.2.OA.B.2
Preview
Page 1 — Drill
Page 2 — Answer Key
What's Included
About this Grade 2 Mixed Add Subtract Drill
Mixed addition and subtraction problems are essential at this stage because they push second graders beyond single-operation thinking into flexible number sense. When your child encounters a problem like 8 + 5 - 3, they're not just computing—they're learning to hold multiple steps in mind, track what they've added or removed, and adjust their thinking mid-problem. This mirrors real life: counting toys, combining them with birthday gifts, then giving some away requires exactly this mental flexibility. These problems also strengthen working memory and strengthen the brain's ability to switch between operations, skills that directly support reading comprehension and planning ahead. By practicing mixed problems now, children build confidence with larger numbers and lay groundwork for multi-step word problems they'll encounter soon. This skill set is foundational for mathematical thinking beyond simple arithmetic.
What your student will practice
- Solve two-step problems with addition and subtraction in any order
- Track and update running totals across multiple operations
- Recognize operation symbols and apply them correctly in sequence
- Check answers by working through steps a second time
Common mistakes to watch for
The most common error Grade 2 students make is ignoring the second operation entirely—for example, solving 9 + 4 - 2 but writing only 13 (stopping after the addition). Look for answers that match just the first step. Another frequent mistake is reversing the operation: solving 9 - 4 + 2 as if it's 9 + 4 - 2. Students might also lose track of their running total and use the original number instead of their intermediate answer. Watch for inconsistent checking: ask your child to read the problem aloud and point to each symbol to confirm they see both operations.
During snack time or tidying up, create live mixed-operation scenarios. For instance: 'We have 6 crackers. Add 3 more. Now take away 2 for your sister.' Have your child say the answer aloud after each step, not just the final one. This real-world rehearsal helps them internalize the sequence of 'do this, then do that' without the pressure of pencil and paper. Repeat with toys, books, or blocks—the concrete object makes the second operation impossible to forget.