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This Mixed Add Subtract drill has 40 problems for Grade 2. Circus theme. Answer key included.
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Max discovered the circus tent flooded! He must solve math problems to unlock animal cages before water rises higher.
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Page 1 — Drill
Page 2 — Answer Key
What's Included
About this Grade 2 Mixed Add Subtract Drill
At age 7-8, children are developing what mathematicians call "flexible thinking"—the ability to switch between adding and subtracting without getting stuck in one operation. Mixed-add-subtract problems mirror real life: you earn coins at a carnival game, spend some on popcorn, then find more in your pocket. This worksheet builds the critical skill of reading operation signs carefully and executing multiple steps in sequence, which strengthens working memory and attention to detail. Students who master mixed operations develop confidence with two-step word problems and gain a foundation for multi-digit computation later. Without this practice, many second graders freeze when they see a plus sign after a minus sign, or they complete the first operation and forget there's a second one waiting. Regular drill work with mixed operations trains the brain to pause, identify each symbol, and execute systematically—a habit that transfers directly to reading comprehension and following multi-part directions across all subjects.
What your student will practice
- Identify and distinguish between addition and subtraction operation symbols within a single problem
- Execute two operations in the correct left-to-right sequence without skipping steps
- Solve mixed-operation problems with sums and differences within 20
- Verify answers by checking their work or using a different mental strategy
Common mistakes to watch for
The most common error is "operation blindness," where students complete the first operation correctly but either ignore the second symbol or default to repeating the first operation. For example, with 8 + 3 − 2, they'll correctly get 11 but then add 2 instead of subtract, writing 13 as the final answer. Watch for students who rush through and don't touch their pencil to each symbol as they work, or who write only one answer when two operations are shown. Another pattern is "direction confusion"—students who consistently subtract in the wrong direction (writing 2 − 8 instead of 8 − 2 when it appears second), often because they're not anchoring to the original number.
At home or in class, create a "checkout lane" game where your child is a cashier. Start with a number (coins in the register), add some (a customer pays), then subtract some (making change). Use small objects like buttons or pennies so the operation is physical and visible. Walk through the process aloud together: "We start with 12 pennies. A customer gives us 5 more—now we have 17. They buy something for 3 pennies, so we take away 3. How many are left?" This concrete, sequential experience helps second graders internalize that mixed operations happen in order, one after the other.