Rounding Concepts with Number Lines

This video tutorial teaches students how to round numbers to the nearest ten, hundred, and thousand using a song and number line method. It explains the concept of rounding by identifying the digit next to the place value being rounded and applying the rule: 'five or more, let it soar; four or less, let it rest.' The video provides examples for each rounding scenario, helping students visualize the process on a number line.

What is the rule for rounding numbers up?

• If it's 3 or less, let it rest.

• If it's 5 or more, let it soar.

• If it's 6 or more, let it soar.

• If it's 4 or less, let it soar.

What happens to a number if the digit next door is 4 or less?

• It is multiplied by ten.

• It rounds down to the lower ten.

• It stays the same.

• It rounds up to the next ten.

What is the rule for rounding numbers down?

• If it's 6 or more, let it rest.

• If it's 4 or less, let it rest.

• If it's 5 or less, let it rest.

• If it's 3 or less, let it soar.

Which digit helps you decide how to round a number?

• The last digit.

• The digit two places away.

• The first digit.

• The digit right next door.

When rounding 278 to the nearest ten, what is the correct rounded number?

• 270

• 280

• 275

• 278

What is the midpoint between 270 and 280?

• 280

• 290

• 275

• 285

What is the purpose of the midpoint in rounding numbers?

• To subtract from the original number.

• To determine the highest possible number.

• To help organize thoughts and information.

• To multiply the original number.

When rounding 483 to the nearest hundred, what is the correct rounded number?

• 483

• 450

• 400

• 500

What is the midpoint between 400 and 500 when rounding to the nearest hundred?

• 475

• 425

• 500

• 450

When rounding 4125 to the nearest thousand, what is the correct rounded number?

• 4500

• 4125

• 4000

• 5000