Question

Solve and then use estimation to make sure your answer is reasonable.

Kyle can read 22 pages of his book in an hour. Kyle read for 114.5 hours last summer.

How many pages did Kyle read last summer?

Answer 1

114.5 x 22 = 2,519
she read about 2,500 pages last summer

Answer 2

You would round the answer by rounding

114.5 rounds down to 100
22 rounds down to 20

100×20=2,000

The real answer is 2,519. This is close to 2,000, so this answer is reasonable.