Rounding Three-Digit Numbers to the Nearest Hundred

The video tutorial explains how to round numbers to the nearest 100 using a number line. It covers the process of rounding four specific numbers: 152, 137, 245, and 354. The tutorial emphasizes looking at the tens place to determine whether to round up or down. It provides a step-by-step guide for each number, illustrating the concept with a number line and explaining the reasoning behind each rounding decision.

What is the purpose of rounding numbers to the nearest 100?

• To find the exact value

• To make calculations easier

• To decrease the number

• To increase the number

Where does 152 lie on the number line when rounding to the nearest 100?

• Closer to 200

• Exactly at 152

• Exactly at 150

• Closer to 100

What is the rule for rounding a number when the tens place is 5 or larger?

• Round up

• Round down

• Keep the number the same

• Round to the nearest 10

What is 152 rounded to the nearest 100?

• 100

• 150

• 250

• 200

What is the nearest 100 to which 137 should be rounded?

• 100

• 150

• 200

• 250

What is the tens place digit of 137?

• 7

• 3

• 0

• 1

What is 245 rounded to the nearest 100?

• 250

• 300

• 200

• 100

Why do we round 245 down to 200?

• Because the tens place is less than 5

• Because the tens place is 5 or larger

• Because it is closer to 300

• Because it is exactly 250

What is 354 rounded to the nearest 100?

• 300

• 350

• 450

• 400

Why do we round 354 up to 400?

• Because it is closer to 300

• Because it is exactly 350

• Because the tens place is 5 or larger

• Because the tens place is less than 5