Over and Under Estimating

Estimate 38 x 230

• 6000

• 7000

• 8000

• 9000

Estimate 854 x 733

• 63

• 630

• 6,300

• 630,000

Is 500 over or under or exactly the estimate of 12 times 53?

• Over

• Exactly 500

• Under

Which does NOT show a reasonable estimate of 24 x 338? (which one is too big)

• 6000

• 7000

• 7500

• 10000

Melany is organizing a city carnival and needs to estimate the number of balloons she needs. She found a supplier who can provide a pack of balloons that contains 927 balloons and she thinks she will need about 516 packs. Estimate the numbers to the nearest hundred and then solve. How many balloons will Melany have approximately?

• 4,500

• 45,000

• 450,000

• 45

more or less correct or exact

• arithmetic

• estimate

• approximate

• perimeter

Mrs. Akin has ABOUT 580 stickers. How many COULD she have? 

• 555

• 576

• 585

• 574

Estimate 180 x 586

• 120

• 1200

• 12,000

• 120,000

Estimate 300 x 118

• 300

• 3000

• 30000

• 3,000,000

Estimate the product:

4,280 x 2

• 5,000

• 7,000

• 8,000

• 6,000