Fact family games
Free Fact Family Games
In Family House, three numbers shine in the windows. Open every door that belongs to the family, and don't let the impostor in.
Family House appears once your child is ready for subtraction
Free to play · no signup · works on phones, tablets and computers
Why fact families help
Six, nine and fifteen make four facts: 6 + 9, 9 + 6, 15 − 6 and 15 − 9. A child who sees that link has one thing to remember in place of four, and subtraction stops being a separate subject.
Family House comes in at a slightly higher level, since it needs subtraction. Children meet it in the game when they're ready. You can also go straight to one family: try 6, 9, 15 or browse them all.
Quick quiz: does it belong?
Fact family games FAQ
What is a fact family?
Three numbers that are linked by addition and subtraction, like 6, 9 and 15. Most families have four facts. Doubles have two.
What grade learns fact families?
Usually first and second grade, when subtraction is being connected to addition.
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