Rounding Numbers in Pre-Algebra

Professor Perez teaches rounding numbers using a number line, focusing on rounding to the nearest ten, hundred, and ten-thousand. The video includes examples and explanations, with Charlie participating in the exercises. The process is described both visually and verbally, emphasizing rounding rules and techniques.

If you have the number 14, which ten is it closest to?

• 20

• 10

• 0

• 30

What does the number 16 round to when rounding to the nearest ten?

• 10

• 15

• 20

• 25

When rounding the number 45 to the nearest ten, which direction do you round?

• Left

• Right

• Down

• Up

What does the number 105 round to when rounding to the nearest ten?

• 110

• 115

• 105

• 100

To which hundred does the number 175 round?

• 150

• 100

• 250

• 200

What is the rounded value of 705 to the nearest hundred?

• 600

• 800

• 700

• 900

When rounding 1,058 to the nearest ten, which digit do you look at after identifying the tens place?

• 1

• 8

• 5

• 0

If the digit in the tens place is 8 and the next digit is 3, what is the rounded number?

• 1,100

• 1,090

• 1,080

• 1,070

What does 10,539 round to when rounding to the nearest hundred?

• 10,600

• 10,540

• 10,500

• 10,000

When rounding 1,098,765 to the nearest ten-thousands, what is the result?

• 1,000,000

• 1,110,000

• 1,100,000

• 1,090,000