Estimate Division Compatible Numbers

• 30, 40

• 30, 50

• 40, 50

• 40, 60

• 50

• 70

• 80

• 65

finding a number that is close to the exact amount

• compatible numbers

• partial quotients

• estimate

• quotient

When estimating with division, you should

• find compatible numbers closest to the original numbers and divide

• Round to the nearest ten and divide no matter what

• just divide

• ?

Compatible numbers are:

• Fake numbers

• Numbers you make up

• Numbers that help make math easier and are friendly

• Numbers that hold hands

When estimating 372 divided by 41, it should be changed to

• 400 divided by 40

• 360 divided by 40

• 370 divided by 50

• 300 divided by 50

When estimating 278 divided by 31, what would be the best numbers to change 278 and 31 to

• 300 divided by 30

• 27 divided by 3

• 270 divided by 30

• 300 divided by 20

What could be the compatible numbers for 452 / 24?

• 400 and 30

• 500 and 30

• 400 and 20

• 500 and 20

Erin has 598 goldfish to split between 22 fish tanks. About how many goldfish are in each tank? Choose the best answer

• 3 goldfish in each tank

• 20 goldfish in each tank

• 12 goldfish in each tank

• 30 goldfish in each tank

Use compatible numbers to estimate.

7,233 ÷ 84

• 8500 ÷ 85 = 100

• 7,200 ÷ 90 = 80

• 7,200 ÷ 80 = 90