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

Answer 1

To estimate the total cost of feeding Quincy’s dog each day, we can round the quantities involved. Quincy feeds his dog 2.75 cups of dog food, which can be rounded to 3 cups for an easier estimate. Each cup costs $1.25, which can be rounded to $1.

Now, let's evaluate the options you provided:

1. 2 times 1: This estimates the cost as 2 cups at $1 each, which is not close.
2. 2 times 2: This gives us a cost of 4, which doesn't accurately reflect either the number of cups or the correct price.
3. 3 times 1: This estimates the cost as 3 cups at $1 each, providing a total of $3.

Among these options, 3 times 1 is the best estimate, as it uses the rounded numbers of approximately 3 cups and $1 per cup. Thus, the most accurate estimation for Quincy to check his multiplication would be 3 times 1.