Rounding Numbers and Multiples

This video tutorial explains how to round numbers to the nearest ten. It begins with an introduction to the concept of rounding and the importance of the ten times table. The instructor provides several examples, demonstrating how to determine which multiple of ten a number is closest to. The video also covers rounding larger numbers and offers tips for quickly identifying the nearest ten. The tutorial concludes with a brief overview of what will be covered in future videos, including rounding to the nearest hundred and thousand.

Why is it important to think of the ten times table when rounding to the nearest ten?

• It makes calculations faster.

• It helps in learning multiplication.

• It helps identify the closest tens.

• It is a requirement for all math problems.

What are the two closest multiples of ten to the number 23?

• 10 and 20

• 20 and 30

• 30 and 40

• 40 and 50

When rounding 23, why do we round down to 20?

• Because 23 is a prime number.

• Because 23 is less than 25.

• Because 23 is an odd number.

• Because 23 is closer to 20 than 30.

What is the rule for rounding when the last digit is less than 5?

• Always round up.

• Always round down.

• Round to the nearest even number.

• Round to the nearest odd number.

What are the two closest multiples of ten to the number 14?

• 10 and 20

• 20 and 30

• 10 and 15

• 15 and 20

Why do we round 14 up to 15?

• Because 14 is a prime number.

• Because 14 is closer to 15 than 10.

• Because the last digit is greater than 5.

• Because 14 is an even number.

What are the two closest multiples of ten to the number 97?

• 90 and 100

• 80 and 90

• 70 and 80

• 100 and 110

Why do we round 97 up to 100?

• Because 97 is closer to 100 than 90.

• Because 97 is an odd number.

• Because 97 is a prime number.

• Because 97 is less than 100.

What is the general rule for rounding larger numbers?

• Always round down.

• Always round up.

• Use a different method for larger numbers.

• Use the same method as smaller numbers.

What are the two closest multiples of ten to the number 450?

• 440 and 450

• 460 and 470

• 430 and 440

• 450 and 460