Using the digits 0-9 no more than one time each, drag the number tiles in the boxes to create two equal ratios.
Create another valid setup different from the one you made above.
Create another valid setup different from the two you made above.
Create another valid setup different from the three you made above. Here, be sure the ratio on the LEFT is different from any of the ratios you used on the LEFT side in the three problems above.
Drag any digit to a place where you know it CANNOT GO. Then explain why this digit cannot go there.