Compatible Numbers Worksheet

A worksheet for 6th graders to practice estimating sums, differences, products, and quotients using compatible numbers.

Grade 6 Math Number SenseCompatible Numbers

Use This Worksheet

Includes

Fill in the BlanksMultiple Choice2 Short AnswerTrue / FalseText

Standards

CCSS.MATH.CONTENT.6.NS.B.2CCSS.MATH.CONTENT.6.NS.B.3

Topics

mathgrade 6compatible numbersestimationnumber sense

8 sections · Free to use · Printable

Compatible Numbers Practice

Name:

Date:

Score:

Read each question carefully and use compatible numbers to estimate the answer. Show your work.

Estimate each sum or difference using compatible numbers.

1. 48 + 73 ≈

2. 121 - 59 ≈

3. 389 + 512 ≈

4. 603 - 297 ≈

Choose the best estimate for each product using compatible numbers.

5. 23 × 18 ≈ ?

400

500

600

700

6. 49 × 9 ≈ ?

400

450

500

550

Estimate each quotient using compatible numbers.

7. 158 ÷ 4

8. 297 ÷ 5

9. 543 ÷ 9

Determine if the following statements are true or false.

10. To estimate 312 + 489, you can use 300 + 500.

True

False

11. Compatible numbers are always rounded to the nearest ten.

True

False

Solve the following word problems using compatible numbers.

12. A baker made 147 cookies and wants to put them into boxes that hold 12 cookies each. About how many boxes will she need?

13. Sarah is reading a book with 287 pages. She has read 103 pages so far. About how many pages does she have left to read?

Here is a number line to help visualize compatible numbers for estimation. If you were estimating 78 + 23, you might use 80 + 20 = 100.