Lesson: Estimating Quotients Using Compatible Numbers

In this lesson, we will learn how to estimate quotients using rounding and compatible numbers.

Sample Question Videos

Q1:

We can use multiples of 5 to estimate the answer to .

Number	13	14	15	16	17
Number	65	70

Think about the missing numbers in the table to answer the questions.

82 is closest to .

So, is about .

Q2:

Liam is using facts he knows to estimate .

What is ?

Pick the number which is closest to .

Q3:

Farida has made a table of multiples of 8. Use the table to help her estimate .

Number	45	46	47	48	49
Number 8	360	368	376	384	392

Find the missing multiples of 8 to finish the sentence:

371 is between and .

So, is about .

Hint: Which of the two numbers is it closer to?

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