Estimating Quotients with Compatible Numbers

This video tutorial introduces the concept of compatible numbers, which are numbers that are easy to compute mentally. The lesson focuses on using compatible numbers to estimate quotients in division problems. Through examples and practice problems, students learn how to identify compatible numbers and apply them to estimate answers quickly. The tutorial also includes word problems to demonstrate the practical application of compatible numbers in real-life scenarios. The lesson concludes with a summary and a preview of the next topic, long division.

What is the primary focus of the lesson on estimating quotients?

• Using compatible numbers

• Using complex algorithms

• Using estimation charts

• Using calculators

What are compatible numbers?

• Numbers that are easy to compute mentally

• Numbers that are difficult to compute

• Numbers that are always even

• Numbers that are always odd

Which of the following is an example of compatible numbers in multiplication?

• 8 times 6

• 9 times 4

• 10 times 3

• 7 times 5

In division, what makes numbers compatible?

• When the divisor is larger than the dividend

• When the divisor goes into the dividend evenly

• When the dividend is a prime number

• When the divisor is a fraction

How do you estimate a quotient using compatible numbers?

• By multiplying the numbers

• By finding numbers that divide evenly

• By using a calculator

• By rounding the numbers

What is the estimated quotient of 371 divided by 5 using compatible numbers?

• 60

• 70

• 80

• 90

Which of the following is a compatible number for estimating 253 divided by 6?

• 220

• 240

• 250

• 230

In the word problem about the car traveling 187 miles in 3 hours, what is the estimated distance traveled each hour?

• 50 miles

• 60 miles

• 80 miles

• 70 miles

How many times does a dog's heart beat in one minute if it beats 520 times in five minutes?

• 80 times

• 100 times

• 110 times

• 90 times

How many pieces of candy will each person get if 171 pieces are divided among Logan and his three friends?

• 35 pieces

• 40 pieces

• 45 pieces

• 30 pieces