Unit 3 - Lesson 14 - Grade 3: Illustrative Mathematics

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20 Questions

Note from the author:

Grade 3 Unit 3
Lesson 14: Nearest Multiples of 10 and 100
CC BY 2021 Illustrative Mathematics®

Instructions

Grade 3 Unit 3
Lesson 14: Nearest Multiples of 10 and 100
CC BY 2021 Illustrative Mathematics®

Lesson: Nearest Multiples of 10 and 100

Estimation Exploration: What Number Could this Be? (Warm Up)

What number could the point on the number line represent?

Record an estimate that is:

Close to Multiples of 10

Locate and label each number on a number line.

128
272
436
89
351

The same numbers are listed in the table. Name the multiple of 100 that is the nearest to each number. (Leave the last column blank for now.)

Look at the point for 128 on the number line.

Name two multiples of 10 that are the closest to 128.

Which of the two is the nearest multiple of 10?

Label the last column in the table “nearest multiple of 10.” Then, name the nearest multiple of 10 for each number. Use the number lines if you find them helpful.

The Nearest Multiples

Is 349 closer to 300 or 400?

Is 349 closer to 340 or 350?

Is 712 closer to 700 or 800?

10.

Is 712 closer to 710 or 720?

11.

Is 568 closer to 500 or 600?

12.

Is 568 closer to 560 or 570?

13.

Without locating a given number on a number line, how did you decide the nearest multiple of 100?

14.

Without locating a given number on a number line, how did you decide the nearest multiple of 10?

15.

Name the nearest multiple of 100 for 324.

16.

Name the nearest multiple of 10 for 324.

17.

Name the nearest multiple of 100 for 89.

18.

Name the nearest multiple of 10 for 89.

Cool Down: Closest Multiple of 10 and 100

19.

What is the nearest multiple of 100 to 162? Is it 100 or 200? Explain or show your
reasoning.

20.