Addition fact · plus 0, 1 and 2
1 + 4 = 5
One plus four equals five. Adding 1 is just saying the number that comes next after 4.
See 1 + 4
1 red and 4 yellow.
Say the next number
- Say the bigger number and hold it in your head: 4. Start from 4, because 1 + 4 and 4 + 1 are the same sum and the bigger number first means less counting.
- Count on 1: 5.
- You stopped on 5, so 1 + 4 = 5.
Its fact family
1, 4 and 5 go together, so learning one of these helps with all of them. See the family.
Practice 1 + 4 in a game
A fact sticks when a child has to pull it from memory again and again. In this game 1 + 4 keeps coming back between the other facts in its family.
Every round leans on 1 + 4
Free to play · no signup · works on phones, tablets and computers
Quick quiz
1 + 4 FAQ
What is 1 + 4?
1 + 4 = 5. In words: one plus four equals five.
Is 1 + 4 the same as 4 + 1?
Yes, both make 5. Adding works in either order, which is why knowing one fact gives you its turnaround for free.
What grade learns 1 + 4?
Facts within 5 are a kindergarten goal: Common Core standard K.OA.A.5 says to fluently add and subtract within 5.
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