Rounding to the Nearest 10 or 100 in Real World Situations

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