Choose a mode
Add gram weights to the right pan with the − / + buttons (1 g, 10 g, 100 g), or drag up to add a 10 g weight, until the beam is level. Then press Check
Add gram weights to the right pan with the − / + buttons (1 g, 10 g, 100 g), or drag up to add a 10 g weight, until the beam is level. Then press Check
3D math game · Best for grades 2-3
Weighing Scale puts students at a market stall where they must balance fruit on one pan by adding gram weights (1 g, 10 g, 100 g) to the other. The tilting beam provides instant feedback on whether the total is too light or too heavy, turning weight measurement into a concrete physical balancing task.
Composing a target weight from 1 g, 10 g, and 100 g denominations builds place-value intuition for three-digit numbers while practising the real measurement skill of choosing the most efficient combination of weights — the same reasoning used in every market and kitchen context for grades 2–3.
The target is 253 g. Students add two 100 g weights (200 g), five 10 g weights (50 g), and three 1 g weights (3 g) to reach exactly 253 g. The step-by-step decomposition mirrors the place-value structure of the number itself.
Students often use too many small weights instead of exchanging ten 1 g pieces for a 10 g piece. The limited number of weights on screen encourages the regrouping step — paralleling the carrying concept in written addition.
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.