Quincy feeds his dog 2.75 cups of dog food each day. Each cup of dog food costs $1.25. He multiplies the numbers together to determine how much it costs to feed his dog each day. Which expression will result in the best estimate for Quincy to use to check his multiplication?

Question

2 times 1
2 times 2
3 times 1
3 times 2

Answer 1

To estimate the daily cost of feeding the dog, we can use the numbers involved in the original calculation:

• Quincy feeds his dog 2.75 cups of dog food.
• Each cup costs $1.25.

To simplify, we can round 2.75 to the nearest whole number. The closest whole number is 3.

Next, we round $1.25 to the nearest whole number, which is 1.

So, the best estimation can be done by using:

3 cups (rounded from 2.75) times 1 dollar (rounded from 1.25).

Thus, the best expression for Quincy to use to check his multiplication is 3 times 1.