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This Subtraction Within 10 drill has 40 problems for Grade 1. Cherry Blossoms theme. Answer key included.
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Max discovered pink petals scattered everywhere! He must solve each subtraction to reunite them before the wind blows them away.
Standard: CCSS.MATH.1.OA.C.6
Preview
Page 1 — Drill
Page 2 — Answer Key
What's Included
About this Grade 1 Subtraction Within 10 Drill
Subtraction-within-10 is a cornerstone skill that helps first graders understand how numbers relate to each other and solve real problems they encounter daily. When children can quickly subtract numbers like 8 – 3 or 7 – 2, they build confidence in math and develop mental flexibility—the ability to break numbers apart and recombine them in their minds. This skill strengthens their number sense, which is the foundation for all future math learning, from multi-digit subtraction to word problems. At ages 6 and 7, children's brains are developing the working memory and visual-spatial reasoning needed to track quantities, making this the ideal time to practice. Mastering subtraction-within-10 also reduces anxiety around math and shows children that they can solve problems independently, whether they're counting down toys or figuring out how many snacks are left.
What your student will practice
- Solve subtraction problems with minuends and subtrahends both under 10
- Count backward fluently from any number up to 10
- Represent subtraction using objects, fingers, or drawings
- Recognize subtraction as the inverse of addition
Common mistakes to watch for
Many first graders confuse which number to start with when subtracting—they might count backward from the smaller number instead of the larger one. Another common error is losing track while counting on fingers, especially when problems involve crossing the five-mark (like 9 – 6), because they haven't yet internalized groups of five and ten. Some children also subtract the wrong amount because they misread which number is being taken away. Watch for students who restart their count each time or use inefficient strategies like counting all the way from one rather than counting backward or using known facts.
Turn snack time into a subtraction game by starting with a small pile of crackers or berries (no more than 10) and asking your child to "take away" 2 or 3 pieces while you both watch. Ask, "We had 7 berries and you ate 2—how many are left?" Let them eat the subtracted portion, making the action concrete and satisfying. This real-world, hands-on approach helps children anchor subtraction to something they care about and repeating it daily builds automaticity without it feeling like practice.