Rounding to the Nearest 10 or 100 in Real World Situations

The video tutorial teaches how to round numbers to the nearest 10 or 100 in real-world situations. It explains the concept of benchmark numbers and midpoints, and provides examples of rounding numbers in various scenarios. The tutorial emphasizes the importance of identifying keywords like 'about' or 'estimate' to determine when rounding is needed. Through practical examples, viewers learn to round numbers like 26, 85, 324, and 1,742 to the nearest 10 or 100, enhancing their estimation skills for everyday use.

What is a benchmark number?

• A number that is always rounded up.

• A number that is exactly in the middle of two numbers.

• A number that is always rounded down.

• A number that lies on either side of a given number.

What is the midpoint between 400 and 500?

• 475

• 425

• 500

• 450

If you have 26 students, to which number should you round to the nearest ten?

• 40

• 25

• 20

• 30

Which word indicates that you should estimate rather than find an exact number?

• Exact

• Calculate

• About

• Precise

Jill counted 85 days until her birthday. To the nearest ten, how many days are there?

• 80

• 85

• 90

• 95

If there are 324 fish in an aquarium, what is the rounded number to the nearest ten?

• 340

• 330

• 325

• 320

How many pencils are there approximately if you round 1,742 to the nearest hundred?

• 1,700

• 1,600

• 1,750

• 1,800