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This Mixed Add Subtract drill has 40 problems for Grade 1. Donuts theme. Answer key included.
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Max discovers the donut shop door stuck! He must solve math problems unlocking each delicious donut box inside.
Standard: CCSS.MATH.1.OA.C.6
At age 6-7, your child's brain is developing the ability to hold multiple numbers and operations in mind at once—a skill called working memory. Mixed addition and subtraction problems are the perfect challenge because they require students to read carefully, decide whether to add or subtract, and then compute accurately. This isn't just about getting the right answer; it's about building flexibility with numbers. When children solve problems like "5 + 2 - 1," they're learning that numbers can be combined in different ways and that the order of operations matters. This foundation is essential for all future math, from multi-digit problems to word problems they'll tackle in second grade and beyond. These drills also build confidence because students discover they can handle more complex thinking than simple, single-operation problems.
The most common error Grade 1 students make is ignoring the operation sign or confusing it—they'll see "6 - 2 + 3" and add all the numbers together to get 11, instead of working left-to-right to get 7. Another frequent mistake is forgetting what number they're starting with after the first operation; a child might compute "4 + 3" correctly as 7, but then lose track and add 2 to the original 4 instead of to 7. Watch for a student who rushes through and doesn't slow down to read each sign. You can spot this by asking them to point to and say aloud each operation before solving.
At the grocery store or kitchen, play a simple operation game: show your child a small group of items (like four apple slices), then add some ("I'm adding two more"), and subtract some ("Now we're eating one"). Ask them to tell you how many are left. This mirrors the left-to-right flow of mixed problems in a tactile, low-pressure way that makes the abstract symbols feel real. Repeat with different starting amounts and encourage them to use their fingers to track if needed—that's developmentally appropriate at this age.