Estimating Quotients

Front

What is estimation in division?

Back

Estimation in division is the process of finding an approximate value of a quotient by rounding the numbers to make calculations easier.

Front

What does it mean for numbers to be 'friendly' for estimation?

Back

'Friendly' numbers are those that are easy to work with, often rounded to the nearest ten, hundred, or other convenient value.

Front

How do you round 660 to make it friendly for estimation?

Back

660 can be rounded to 700 for easier estimation.

Front

What is the friendly number for 2700 when estimating division by 30?

Back

2700 is already friendly for estimation, but it can also be rounded to 3000.

Front

What is the best friendly number to use for estimating 360 ÷ 4?

Back

360 is already friendly, but it can be rounded to 400 for easier calculation.

Front

How do you change 5800 ÷ 60 to make it friendly for estimation?

Back

Change 5800 to 5400 for easier division.

Front

What is the friendly number for 4000 when estimating division by 20?

Back

4000 is already friendly for estimation.

Front

Why is it important to use friendly numbers in estimation?

Back

Using friendly numbers simplifies calculations and helps to quickly find approximate answers.

Front

What is the result of estimating 2700 ÷ 30?

Back

The estimated result is 90.

Front

How can you estimate 660 ÷ 6?

Back

You can round 660 to 600, making the estimation 600 ÷ 6 = 100.