Miss Frankie from GCMs Elementary School explains lesson 4.5 from the Go Math series, focusing on estimating quotients using compatible numbers. She demonstrates this concept with two examples: 315 divided by 8 and 252 divided by 3. In each example, she identifies multiples of the divisor close to the dividend, adjusts the dividend to a compatible number, and performs the division to find an estimated quotient. The lesson concludes with a preview of a follow-up lesson on finding the range of estimates.

What is the main topic of lesson 4.5 in the Go Math series?

• Finding exact quotients

• Multiplying large numbers

• Estimating quotients using compatible numbers

• Estimating sums using compatible numbers

Why does Miss Frankie list the first five multiples of 8?

• To find the exact answer

• To estimate the quotient

• To simplify the problem

• To check for errors

What is the closest multiple of 8 to the first two digits of 315?

• 16

• 32

• 40

• 24

What is the estimated quotient of 315 divided by 8?

• 40

• 50

• 35

• 45

What is the new problem introduced by Miss Frankie?

• 315 divided by 8

• 320 divided by 8

• 240 divided by 3

• 252 divided by 3

Why does Miss Frankie list multiples of 3 higher than before?

• To make the problem easier

• To find a closer multiple to 25

• To check for errors

• To find the exact answer

What is the closest multiple of 3 to the first two digits of 252?

• 21

• 27

• 30

• 24

What is the estimated quotient of 252 divided by 3?

• 90

• 80

• 70

• 60

Why does Miss Frankie add a zero to the end of the closest multiple?

• To make the problem easier

• To match the place value of the original dividend

• To find the exact answer

• To check for errors

What will the follow-up lesson discuss?

• Finding exact quotients

• Estimating sums

• Finding the two numbers that the estimate is between

• Multiplying large numbers