Estimate Quotients with Compatible Numbers

The answer to a division question is the ___________.

• sum

• quotient

• product

• difference

What numbers are the BEST compatible numbers to estimate the quotient of this equation? 609 ÷ 21

• 610 ÷ 20

• 600 ÷ 20

• 650 ÷ 25

• 700 ÷ 21

What would be the BEST compatible numbers to estimate the quotient of this equation? 913 ÷ 29 =

• 900 ÷ 30

• 915 ÷ 25

• 950 ÷ 25

• 910 ÷ 20

What would be the BEST compatible numbers to estimate the quotient of this equation?

• 5,500 ÷ 55

• 6000 ÷ 60

• 5,300 ÷ 65

• 5,400 ÷ 60

If 63 is rounded to 60, what number should 251 be rounded to which would make the BEST compatible number?

? ÷ 60 =

• 240

• 250

• 260

• 300

If the divisor, 54, is rounded to 50, what is the BEST compatible number to round 453 to?

? ÷ 50 =

• 400

• 450

• 455

• 500

What would the estimated quotient be?

5,396 ÷ 62 =

• 60

• 90

• 600

• 900

• 60

• 70

• 80

• 90

You can use____________________to estimate quotients because they are easy to compute with mentally.

• partial quotient

• compatible numbers

• place value

• pigs

Numbers that are easy to compute with mental math are called ______

• estimate

• remainder

• compatible numbers

• factor quotients

• product