Estimation Differences

Estimate:

9.89 - 7.92

• 3

• 1

• 0

• 2

What is the best estimate for the difference of 
33 - 10.23

• 10

• 200

• 23

• 9

Choose the correct estimation of the difference

34.84 - 15.09

• 34 - 15 = 19

• 35 - 16 = 19

• 34 - 16 = 18

• 35 - 15 = 20

Estimate. 4.01 - 2.95 =

• 2.00

• 1.00

• 6.00

• 7.00

The number of worker bees in two bee colonies is shown below. - Colony A has 24,815 worker bees. - Colony B has 7,144 worker bees. Which of the following is the best estimate of the difference between the number of worker bees in these colonies?

• 23,000

• 18,000

• 13,000

• 16,000

Round to the nearest hundred, then estimate the difference:

642 − 137

• 600

• 780

• 500

• 510

Mr. Smith traveled 764 miles in May, 879 miles in June, and 918 miles in July. Which expression shows the best way to estimate the difference between the number of miles Mr. Smith traveled in July and May?

• 920 + 760

• 880 - 760

• 900 - 700

• 920 - 760

Round to the nearest ten thousand, then estimate the difference:

887,167 - 342,208 =

• 500,000

• 554,000

• 545,959

• 550,000

Rick feeds his cats 24oz of food each day. What is the best estimate of the number of ounces of food he will feed them in the Month of March which is 31 days? Hint: Round each number to the tens place**

• 600

• 900

• 800

• 750

Round to the nearest thousand, then estimate the difference:

98,412 - 45,802

• 53,000

• 51,000

• 52,000

• 51,872