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This Mixed Add Subtract drill has 40 problems for Grade 2. Lost City theme. Answer key included.
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Max found ancient stone doors blocking the treasure chamber! He must solve equations to unlock each door before the walls collapse.
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 crucial for Grade 2 students because they require flexible thinking about numbers in real-world situations. At ages 7-8, children need to move beyond simple one-operation problems to handle everyday math like "I had 12 stickers, gave away 3, then found 5 more—how many do I have?" This skill strengthens number sense and teaches students to read carefully, decide which operation to use first, and track changes to quantities over time. When children can fluently solve mixed problems, they build confidence and lay the foundation for multi-step word problems and algebraic thinking in later grades. Like navigating a lost city's winding paths, students learn to follow the correct sequence and adjust their strategy as they go.
What your student will practice
- Identify whether to add or subtract based on problem language and context clues
- Solve two-operation problems in the correct sequence with accuracy
- Apply mixed addition and subtraction within 20 with automaticity
- Explain the steps taken to solve a mixed-operation problem
Common mistakes to watch for
Many Grade 2 students reverse operations—they see "subtract then add" but perform "add then subtract"—or they solve left-to-right without checking the sign. Others skip the second operation entirely or lose track of their first answer when solving the second part. Watch for students who say numbers aloud in the wrong order, circle the wrong operation sign, or write an answer that doesn't match their finger-counting. If a child consistently gets one operation right but stumbles on mixed problems, that signals they need practice connecting the operation symbol to the action word ("gave away" = subtract, "got more" = add).
Play a simple "Story and Solve" game at home during snack time: say a mixed-operation story using objects your child can touch (crackers, coins, blocks). Example: "You have 8 crackers. You eat 2. Then I give you 4 more. How many now?" Let your child move the objects, say the first answer aloud, then do the second step. This concrete, playful practice with immediate feedback helps them see that the order of operations and the objects' movement matter—much more powerful than worksheets alone.