Estimate Value

In a school cafeteria, 1,350 lunch trays are used every day. Approximately how many lunch trays are used in 5 days? Choose the best estimate.

• 1,000 x 5 = 5,000

• 1,000 x 10 = 10,000

• 1,350 x 5 = 6,750

A museum has 237 works of art on the first floor. The second floor has 349 works of art. The third floor has 219 works of art. About how many works of art in all? (Use greatest place value.)

• 800

• 700

• 750

• 660

491 people attended the school play.  422 people attended the football game.  Ryan rounds to the nearest hundred and estimates that 800 people attended both events.  Is his estimate correct?  Explain

• Yes, because 400 + 400 = 800

• No, because 500 + 400 = 900

• No, because he did not estimate correctly.

• Yes, because he estimated correctly. 

While on a trip, Becca counted 148 red cars and 153 blue cars. Jasmine, her sister, counted 184 white cars and 92 green cars. Rounding to the tens place, who counted more cars?

• Becca counted more, she got 300

• Jasmine counted more, she got 300

• Becca counted more, she got 250

• Jasmine counted more, she got 250

Jill took 32 minutes to complete math homework and 16 minutes to complete reading. About how many minutes did Jill use for homework?

• 48 minutes

• 50 minutes

• 55 minutes

• 40 minutes

choose : use front -end strategy to estimate.

• 40

• 50

• 60

• 30

choose : use front -end strategy to estimate.

• 70

• 90

• 80

• 100

Estimate to the thousands place.
163,762 + 3,210 =

• 167,000

• 166,972

• 168,000

• 166,800

Estimate to the thousands place.
6,138 + 5,963 + 6,023 + 5,874 + 6,003

• 31,000

• 30,001

• 28,000

• 30,000

Estimate to the thousands place.
38,674 + 83,102 =

• 122

• 122,000

• 120,000

• 121,776