Subtraction Games
Subtraction facts come from the addition facts children already know. Begin within 10, then subtract from teen numbers, then work with two-digit numbers.
- Subtraction Within 10From 10 or lessKindergarten–Grade 1 (ages 5–7)
- Subtraction Within 20Teen numbers, crossing tenGrades 1–2 (ages 6–8)
- Two-Digit SubtractionWithin 100Grades 2–3 (ages 7–9)
Questions and answers
Why is subtraction harder than addition?
Counting back is slower and easier to get wrong than counting on. Thinking of subtraction as “what do I add?” (9 − 4 → 4 + ? = 9) makes it much faster.
Do the subtraction games include negative numbers?
No. Every question takes a smaller number from a larger one, so answers are always zero or more.