Estimating Quotients and Divisors

This video tutorial by Mrs. Cox covers estimating quotients by rounding divisors and dividends to compatible numbers. It includes several examples and real-world applications, such as bake sales, land division, and paper distribution, to demonstrate the concept of estimation in division. The tutorial emphasizes mental math techniques and provides step-by-step guidance on how to estimate effectively.

What is the first step in estimating a quotient?

• Round the divisor to the nearest ten

• Round the dividend to the nearest ten

• Multiply the divisor by ten

• Divide the dividend by ten

Which number is usually the divisor in a division problem?

• The largest number in the problem

• The number after the division symbol

• The smallest number in the problem

• The number before the division symbol

How do you find a compatible number for the dividend?

• By adding ten to the dividend

• By subtracting ten from the dividend

• By looking down the times table column

• By multiplying the dividend by the divisor

What is the estimated quotient of 300 divided by 20?

• 10

• 15

• 20

• 25

When estimating, why is it important to find a compatible number?

• To decrease the divisor

• To make the multiplication easier

• To increase the dividend

• To make the division easier

If the divisor is 83, what is a good estimate for it?

• 100

• 90

• 80

• 70

What is the estimated quotient of 500 divided by 50?

• 10

• 5

• 15

• 20

In the example of 400 divided by 100, what is the estimated quotient?

• 2

• 3

• 4

• 5

How do you estimate the divisor when it is 30?

• Round it to 35

• Round it to 25

• Round it to 20

• Round it to 40

What is the estimated quotient of 45 divided by 3?

• 18

• 15

• 12

• 10