Joe filled a 10-cup watering can with water. He then poured some of the water on his tomato plants.

How can Joe find out how much water he used for his tomato plants?

CLEAR CHECK

Use a tape measure to find the height of the water left in the can, and then subtract the number of inches from 10.

Use a scale to weigh the water left in the can, and then subtract the number of pounds from 10.

Use a measuring cup to find the amount of water left in the can, and then subtract the number of cups from 10.