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This Subtraction drill has 40 problems for Grade 1. Sandwiches theme. Answer key included.
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Sam made ten yummy sandwiches for lunch today.
Standard: CCSS.MATH.1.OA.C.6
Subtraction is one of the first big math ideas your child will master, and it's essential for everyday problem-solving. At ages 6-7, children are developing the ability to understand "taking away" and "comparing" quantities, skills they'll use when sharing toys, managing classroom materials, or figuring out how many sandwiches are left after lunch. This worksheet builds fluency with subtraction facts from 0-10, which creates a strong foundation for all future math. When children can quickly recall these basic facts, they free up mental energy to tackle more complex problems. Beyond math class, subtraction teaches logical thinking and helps children understand cause and effect. Practicing these drills builds confidence and automaticity, meaning your child will eventually solve these problems without counting on their fingers.
The most common mistake at this age is counting backward incorrectly or losing track of the count. For example, when solving 8 - 3, a child might count "7, 6, 5" but land on 5 instead of 5 as the answer. Another frequent error is confusing the direction of subtraction: starting with the smaller number instead of the larger one. You'll spot this when a child writes 3 - 8 instead of 8 - 3. Watch also for children who count the starting number in their countdown (saying "8, 7, 6, 5" for 8 - 3 instead of starting the count at 7).
Create a subtraction game using real objects at home—beans, crackers, or blocks work perfectly. Place a small pile (say, 7 items) in front of your child and ask, "If I take away 2, how many are left?" Have them physically remove the items and count what remains. This concrete, hands-on approach helps six- and seven-year-olds connect the abstract numbers on a worksheet to something they can see and touch. Repeat this 2-3 times per week during everyday moments, and your child will internalize subtraction far faster than drills alone.