Estimating Division with Rounding

The video tutorial introduces the concept of estimating quotients, focusing on rounding the divisor to the nearest tens place. It explains how to find low and high estimates by considering multiples of the rounded divisor. The tutorial provides two methods for estimation: one using multiples and another using a box method. The first method involves rounding the divisor and finding estimates by counting multiples, while the second method uses a box to simplify the process. Both methods aim to provide a quick and accurate way to estimate quotients.

What is the purpose of estimating in mathematics?

• To find an exact answer

• To avoid solving problems

• To find an answer close to the correct one

• To make calculations more complex

What is the problem being solved in the video?

• 650 divided by 20

• 650 divided by 18

• 600 divided by 18

• 600 divided by 20

How do you round the divisor 18 to the nearest tens place?

• 25

• 20

• 18

• 15

What is the first step in finding low and high estimates?

• Round the dividend

• Divide the dividend by the divisor

• Use multiples of the rounded divisor

• Subtract the divisor from the dividend

What is the low estimate for 650 divided by 20?

• 640

• 600

• 660

• 620

What is the high estimate for 650 divided by 20?

• 700

• 680

• 660

• 640

How do you calculate 64 divided by 2?

• 32

• 31

• 33

• 30

What is the alternative method for finding estimates?

• Using the last digit of the dividend

• Using the entire dividend

• Using the entire divisor

• Using the first digit of the divisor

In the alternative method, what do you do if the first number is greater than the multiple?

• Subtract it

• Add it to the divisor

• Draw a box around it

• Ignore it

What is the final answer for 600 divided by 20 using the alternative method?

• 40

• 35

• 30

• 25