Rounding to the Tens Place

Tyler says 753 rounds to 800.  Alexis says 753 rounds to 750.  Who is correct?

• Tyler

• Alexis

• Both of them are right, it depends on whether you are rounding to the nearest ten or hundred

• Niether of them are right

John has 39 blue marbles and 483 red marbles. What would be the best estimate, to the nearest tens, for how many marbles John has all together?

• 520

• 510

• 500

• 530

A dog weighs 37 pounds. When rounded to the nearest tens, about how much does the dog weigh?

• 30

• 35

• 40

• 50

Ronnie has three planks of wood. The first plank is 27 inches long. The second plank is 44 inches long. The third plank is 18 inches long. Rounded to the nearest tens, what is the best estimate of the total length of these three planks in inches?

• 100 inches

• 90 inches

• 80 inches

• 89

Round 834 to the nearest ten.

• 800

• 900

• 840

• 830

Which of these does NOT round to 450 when rounding to the nearest ten?

• 458

• 447

• 449

• 451

1) Round 67 to the nearest ten.

• 70

• 60

• 50

• 65

What is 35 rounded to the nearest 10?

• 30

• 20

• 40

• 50

8) Maggie believes that 48 rounds to 50. Find the best reason for her answer.

• 48 is 2 numbers away from 50 making it closer to 50
• 48 is 8 numbers away from 40 so it rounds to 40
• 48 is halfway between 40 and 50 so it rounds to 50
• 48 is 3 numbers away from 50 making it closer to 50

Will knows that 24 rounds to 20. Find another number that rounds to 20.

• 25

• 22

• 27

• 29