Subtraction facts to 10
Grades 1 and 2
Taking away to 10 is the other side of adding to 10. Children who see that 7 − 3 asks “what do I add to 3 to make 7?” learn both together.
How to learn them
- Think of the adding fact.
- 7 − 3 asks: 3 and what make 7?
- Count up from 3 to 7.
Example: 7 − 3 = ? 3 and what make 7? Count up: 4, 5, 6, 7. That is 4. Answer: 4.
Try three
3 − 1 = ?
Tap an answer to try it.
9 − 6 = ?
Tap an answer to try it.
10 − 4 = ?
Tap an answer to try it.
Questions parents ask
- How are subtraction facts related to addition facts?
- Each subtraction fact undoes an addition fact. If a child knows 3 + 4 = 7, then 7 − 3 = 4 and 7 − 4 = 3 are the same three numbers in a different order.
- Should my child count back?
- Counting back works for taking away 1, 2 or 3. For bigger numbers, thinking “what goes with 4 to make 9?” is quicker and makes fewer mistakes.
More sets: all math facts practice. Math facts practice is not a report-card mark; it shows what a child knows by heart.
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