Free addition game for kids
Catch the rubber duck with the right sum. Four levels, from sums to 5 for preschoolers to two-digit addition for 2nd and 3rd graders.
Addition Duck Pond
Pick a level
10 ducks a round · no sign-up · nothing is saved
Addition Duck Pond
Catch the duck with the answer!
Filling the duck pond…
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Round complete!
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Free to play · no sign-up · no ads · sound starts only after you tap
How to play
- Pick a level. Each level matches a grade, from the very first facts to two-digit numbers.
- Read the problem on the sign. In the easiest problems, dots under the numbers let your child count to the answer.
- Tap the duck with the answer. The fishing hook swings in and reels it out of the pond.
- Missed one? Try again. The duck slips back into the water with a gentle “So close!”. After two misses the right duck glows.
- Finish a round of 10 to earn up to three stars, then play again or move up a level.
What it practices
| Level | Grades | Skills |
|---|---|---|
| Sums to 5 | Pre-K–K | Adding within 5 fluently (K.OA.A.5). Counting dots under every problem let children count on to the answer. |
| Sums to 10 | K–1st | Facts within 10, including the pairs that make 10 (K.OA.A.4) and adding fluently within 10 (1.OA.C.6). |
| Sums to 20 | 1st–2nd | Facts that cross 10, like 8 + 5, solved with strategies such as making ten (1.OA.C.6); by the end of 2nd grade kids should know all one-digit sums from memory (2.OA.B.2). |
| Two-digit sums | 2nd–3rd | Adding within 100 using place value, with and without regrouping (2.NBT.B.5). |
Tips for parents
- Read the problem out loud together the first few times. Hearing “eight plus five” helps children connect the symbols to the words.
- For sums to 20, ask “How many more to make 10?” 8 + 5 becomes 8 + 2 + 3, which is 10 + 3. That one question unlocks every fact that crosses ten.
- For two-digit sums, add the tens first, then the ones: 47 + 38 is 70 + 15, which is 85. If your child picks 75, they probably forgot to carry the extra ten.
- One or two rounds a day beats one long session. Short, regular practice is what makes facts stick.
Frequently asked questions
What age is this addition game for?
Children from about 4 to 9. Sums to 5 suits preschool and kindergarten, sums to 10 kindergarten and 1st grade, sums to 20 1st and 2nd grade, and two-digit sums 2nd and 3rd grade.
Does my child need to be able to read?
No. The problems are numbers and symbols, the early levels show counting dots, and the game uses sounds and a gentle “So close!” instead of written instructions.
What happens when my child picks the wrong duck?
The duck wiggles, slips off the hook and floats away, and your child simply tries again. After two misses the right duck glows. There are no timers and no way to lose.
Is the addition game really free?
Yes. It runs in your browser with no sign-up, no ads and no downloads, and nothing your child does is saved or sent anywhere.
Does it work on a phone or iPad?
Yes. It works in Safari on iPhone and iPad, and in Chrome, Edge or Firefox on phones, tablets and computers. You can also play with a keyboard.
How is this different from the Mathing app?
This is one booth, the Duck Pond, in endless practice. The Mathing app for iPhone and iPad has five booth games, 80 levels that adapt to your child, 80 plush prizes and a progress report for grown-ups.