Setting up the board…
Take your time — nothing here can go wrong, and you can always try again.
Ready?
Missing Addends
Take your time — nothing here can go wrong, and you can always try again.
Full screen — no distractions
Frequently Asked Questions
- What is "Missing Addends" and how do you play it?
- Missing Addends is a free, interactive mathematics game designed for 1st Grade students. Pour in just enough to fill the jug to 10. It supports 1 player(s), takes about 10 min, and is rated medium difficulty.
- Is this game free to play?
- Yes — Missing Addends is 100% free with no signup required. Just open the page and start playing instantly in your browser on any device.
- What age or grade level is this game for?
- This game is designed for 1st Grade students. The mathematics content is curriculum-aligned for 1st grade level, making it a great supplement to classroom learning.
- Can my child play this game on a tablet or phone?
- Yes. All LittleActivity games work on any device — desktop, tablet, or phone. No app download needed; games run directly in the browser.
- What mathematics skills does this game cover?
- Missing Addends covers 1st grade mathematics skills through interactive gameplay. It builds problem-solving, critical thinking, and subject fluency in a fun, no-pressure environment.
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