Choose a mode
Add dots to each box with the − / + buttons (hundreds, tens, ones), or drag up over a box to add. When a box reaches ten dots they explode into one dot in the box to its left. Build the number, then press Check.
Add dots to each box with the − / + buttons (hundreds, tens, ones), or drag up over a box to add. When a box reaches ten dots they explode into one dot in the box to its left. Build the number, then press Check.
3D math game · Best for grades 2-3
Add neon dots to the ones box; when a box reaches ten dots they explode into one dot in the box to the left
Dots that explode into the next column make base-ten regrouping and exchange between ones and tens visible.
The game builds understanding of Arithmetic. Add dots to each box with the − / + buttons (hundreds, tens, ones), or drag up over a box to add. When a box reaches ten dots they explode into one dot in the box to its left. Build the number, then press Check.
calculation, number composition, place value, and basic operations.
Students see the quantity, adjust it directly, and check the result immediately.
This builds number sense instead of relying only on memorized answers.
Use it for individual practice, paired work, or a short class demonstration before worksheets.
Start with the game above, then continue with written practice to reinforce the skill.