This even or odd game helps first and second graders tell odd and even numbers apart at a glance. Pop balloons that say Even or Odd, race cars or sprint through true and false sentences. Every question shows one number from 1 to 99, and children decide in a second or two, using the rule that only the last digit matters. It is free, needs no sign-up, works on phones and tablets, and comes with a printable chart that colors every even and odd number from 1 to 100.
Even or odd game: see how it plays
The game below opens in Balloon Pop and has two more modes. The printable 1 to 100 chart shows even numbers in blue and odd numbers in orange, so the pattern is easy to see, and the pictures show Balloon Pop, Answer Race and True or False on this page.
How the even or odd game works
- Balloon Pop: answers float up on balloons, and you pop the right one before it drifts off the top. Two balloons float up, one saying Even and one saying Odd, and the number to judge appears above them. The game speeds up as your score climbs, and three misses ends the round.
- Answer Race: every right answer moves your car forward, and you race three computer cars to the finish flag. The first to 15 wins, and wrong taps cost time, not places.
- True or False: sixty seconds on the clock. Decide whether each sentence, such as 2 = Even, is right or wrong. A streak of five or more scores double.
The even and odd numbers game has no cards to flip, because every answer is one of only two words. If you prefer sorting, try the even and odd sorting game, which gives twenty numbers in a row.
Odd and even numbers: the quick test
To decide whether a number is even or odd, look only at its last digit. Even numbers end in 0, 2, 4, 6 or 8, and odd numbers end in 1, 3, 5, 7 or 9. Here are some examples:
| Number | Last digit | Decision |
|---|---|---|
| 78 | 8 | Even |
| 91 | 1 | Odd |
| 100 | 0 | Even |
| 55 | 5 | Odd |
| 243 | 3 | Odd |
| 1,568 | 8 | Even |
The reason is that the number 10 is even, so every group of ten is made of pairs and the only thing that can be left over is in the ones place. A common mistake is to look at the first digit or to add all the digits together. For this game, the last digit is the only one that matters.
Odd and even numbers chart: patterns on the hundreds chart
If you color the even numbers on a hundreds chart, you get stripes: every second column is even. In a chart that starts at 1, the columns of 2, 4, 6, 8 and 10 are the evens, and the columns of 1, 3, 5, 7 and 9 are the odds. On the printable chart, the evens are blue and the odds are orange, so the pattern is clear. Skip counting by 2s from 2 touches every blue number, and counting by 2s from 1 touches every orange number. Our hundreds chart maker prints charts with many other patterns to explore.
Even odd numbers grade 2: skills to build
- Counting by 2s: from 0 or 1, children count 2, 4, 6, 8 or 1, 3, 5, 7. Our skip counting worksheets help.
- Pairing objects: line up counters in twos. A leftover means odd.
- Equal addends: an even number is a double: 14 = 7 + 7. This links to the doubles facts game.
- Adding evens and odds: even + even is even, odd + odd is even, and even + odd is odd.
Odd and even game ideas: everyday places to spot even and odd numbers
- House numbers: in many streets, the even numbers are on one side and the odd numbers are on the other.
- Calendars: look at dates on a month page. Which weekdays fall on even dates this month?
- Sports teams: can a class of 17 split into two equal teams? No, because 17 is odd.
- Shoes and socks: they come in pairs, so a group of shoes is always even.
Even or odd game tips for parents and teachers
- Start with the rule: before the even or odd game, ask children to say the rule aloud: “last digit 0, 2, 4, 6 or 8 is even.”
- Play for speed: in Balloon Pop, the even or odd game speeds up as the score climbs, so children learn to decide quickly.
- Talk about mistakes: if a child pops the wrong balloon, ask which digit they looked at.
- Link to counting: after a round of the even or odd game, count by 2s from 2 and from 1 to see the two patterns.
Even or odd word problems
- A class has 25 children. Can they all work in pairs? Answer: no, because 25 is odd, so one child needs a group of three.
- Which is even, 37 or 38? Answer: 38.
- Mia says that 40 + 20 is odd. Is she right? Answer: no, even plus even is even, and 60 ends in 0.
- Name the next three even numbers after 94. Answer: 96, 98 and 100.
Even or odd game: frequently asked questions
How can you tell if a number is even or odd?
Look at the last digit. If it is 0, 2, 4, 6 or 8, it is even; if it is 1, 3, 5, 7 or 9, it is odd.
Is 0 even or odd?
Zero is even, as Wikipedia’s evenness of zero article explains. The game does not use it, because its numbers are from 1 to 99.
What age is the even or odd game for?
First and second graders, about ages 6 to 8, who are learning to count in 2s and to pair objects.
Why are there only two choices in the even or odd game?
Every whole number is either even or odd, never both, so the game only needs two answers. That also means Memory Match is not offered here.
Is the even or odd game free, and do kids need an account?
Yes, it is free, and no account is needed. Best scores are saved only in the browser on this device.
Does the even or odd game work on phones and tablets?
Yes. Every game is built for touch first and also works with a mouse on a computer.