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This Mixed Add Subtract drill has 40 problems for Grade 1. Circus theme. Answer key included.
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Max discovers 8 animals escaped their cages! He must solve each math problem to find and rescue them before the big show starts!
At age 6 and 7, children are building the mental flexibility needed to switch between addition and subtraction within the same problem set. Mixed-add-subtract drills strengthen a foundational skill that goes far beyond the worksheet: the ability to recognize which operation a situation calls for and execute it accurately. When your child sees both a plus sign and a minus sign on the same page, their brain practices decision-making and careful symbol recognition—skills that prevent careless errors down the road. This practice also builds confidence with numbers in the 0–20 range, which is where most Grade 1 mastery should land. Real-world moments like combining toy blocks and then removing some, or adding snacks to a plate and eating a few, mirror these mixed problems and help children see math as a tool for everyday thinking, not just a classroom task.
The most common mistake Grade 1 students make is ignoring the operation symbol and defaulting to addition—they'll see "8 − 3" but add instead, writing 11. Another frequent error is reversing the numbers (writing "3 − 8" as "8 − 3"), especially when the smaller number appears first in the problem. You can spot this by checking whether your child reads the symbol aloud before solving, or by asking them to point to the plus or minus before they answer. If they're getting answers consistently larger than expected, the default-to-addition pattern is likely at play.
Play a quick "Operation Detective" game at breakfast or snack time: show your child two numbers and a symbol (written or verbal—you can even act it out like a juggler at the circus adding or subtracting balls). Have them say the operation name first, then solve it aloud before you confirm. This 2–3 minute daily routine trains their brain to pause and process the symbol before computing, which directly transfers to worksheet success and cuts down on careless reversals.