Subtraction facts · −10
The Minus 10 Facts
Taking away 10: take the ten away. Every question in this game takes away 10.
Minus 10 chart
| Fact | Check by adding |
|---|---|
| 11 − 10 = 1 | 1 + 10 = 11 |
| 12 − 10 = 2 | 2 + 10 = 12 |
| 13 − 10 = 3 | 3 + 10 = 13 |
| 14 − 10 = 4 | 4 + 10 = 14 |
| 15 − 10 = 5 | 5 + 10 = 15 |
| 16 − 10 = 6 | 6 + 10 = 16 |
| 17 − 10 = 7 | 7 + 10 = 17 |
| 18 − 10 = 8 | 8 + 10 = 18 |
| 19 − 10 = 9 | 9 + 10 = 19 |
| 20 − 10 = 10 | 10 + 10 = 20 |
How to learn the −10 facts
16 − 10 is 1 ten and 6 ones with the ten removed: 6. Just read the ones.
A full frame and six extra. Take the full frame away. Six left.
Play the minus 10 game
Every question takes away 10
Free to play · no signup · works on phones, tablets and computers
Quick quiz
Keep going
Minus 10 FAQ
What's the easiest way to subtract 10?
Take away the ten. 16 − 10 is 1 ten and 6 ones with the ten removed: 6. Just read the ones.
How can a child check a subtraction fact?
Add back. If 12 − 10 = 2, then 2 + 10 should make 12. That's the second column in the chart.
Is Sumtown really free?
Yes. The whole game plays free in your browser, with no signup, no ads and no time limit. All fourteen mini games are in it. An iPhone app is on its way, and you can read what it will add.
An app is on its way
We're building a Sumtown app for iPhone with the parts that need a real app: offline play for car rides, a town map that remembers how far your child got, and a parent report on every fact. Until then, the whole game is free right here.
Coming soon on theApp Store