Subtraction within 10 is the ability to take away from a group and find how many are left, where all numbers are 10 or less. For example, 7 – 3 = 4. It is the inverse of addition and a critical skill for number fluency. Understanding subtraction also includes working with larger numbers using strategies like "subtract through 10."
Use physical objects and real scenarios: "You have 5 grapes. You eat 2. How many are left?" Stories make subtraction concrete.
Show that subtraction and addition are related: if 3 + 4 = 7, then 7 – 4 = 3. Fact families help children see this relationship.
For small subtrahends (1, 2, 3), teach counting back: "Start at 8. Count back 2: 7, 6. The answer is 6."
Children should subtract with real objects before solving written problems. Cover, remove, or cross out items to show "taking away."
Short, structured daily lessons designed for ages 4–6.
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Download a printable practice sheet for subtraction within 10.
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