Question

Use compatible numbers to find two estimates 1322 divided by 18

Answer 1

Two compatible number estimates for 1322 divided by 18 are 65 and 43.33.

Step-by-step explanation:

To find two estimates of 1322 divided by 18 using compatible numbers, we can round 1322 to 1300 and 18 to 20.

1. First estimate: Divide 1300 by 20. The result is 65.
2. Second estimate: Divide 1300 by 30. The result is 43.33.

Therefore, two estimates for 1322 divided by 18 using compatible numbers are 65 and 43.33.

Answer 2

Compatible numbers is used to find estimate to a sum. The numbers are chosen because its 'simplicity' when they are multiplied, divided, added or subtracted.

Estimate one:

We can decrease the value 1322 to 1320 and 18 to 15
Then do the sum = 1320÷15 = 88
This estimate is not far from the actual answer 1322÷18 = 73.44..

Estimate two:

We can increase 1322 to 1330 and 18 to 20
Then do the sum 1330÷20=66.50
This estimate is also not far from the actual answer 73.44...