estimate decimals

What is 5.8 rounded to the nearest whole number?

(Remember "whole number" means ones place)

• 5

• 6

• 4

• 7

What is 38.3 rounded to the nearest whole number?

• 38

• 39

• 30

• 40

What is 56.4 rounded to the nearest TENS place?

(Remember to find the place and look next door.)

• 57

• 50

• 60

• 56

Estimate the sum.

16.9 + 8.3 ≈ __

• 25

• 26

• 24

• 20

Estimate the difference.

38.2 - 4.8 ≈ __

• 30

• 32

• 33

• 34

Estimate the difference.

802.74  -  478.95  ≈  ___

• 800

• 300

• 400

• 500

Before it erupted on May 18th 1980 Mount St. Helens was 9,677.25 feet tall. After the eruption Mount St. Helens was 8,365.73 feet tall. About how much taller was Mount St. Helens before it erupted?

• 1300 ft

• 18,000 ft

• 900 ft

• 20,000 ft

Maria ran 1.89 miles on Monday and 2.08 miles on Tuesday. On Wednesday , Maria ran twice as many miles as she ran on Monday. Approximately how many miles did Maria run on Monday, Tuesday, and Wednesday combined? Choose the best estimate.

• 3 miles

• 6 miles

• 8 miles

• 4 miles

Each month Ramona´s dad pays $19.95 for internet service. So far this year, he has spent $179.55 on internet service. Which is the best estimate of the number of months Ramona's dad has paid for internet service this year?

• 5 months

• 11 months

• 12 months

• 9 months

Ms. Allen purchased a car for $18,799. The original price of the car was $2,799 more than Ms. Allen´s purchase price. Which is the best estimate of the original price of the car?

• $21,000

• $22,000

• $25,000

• $26,000