What number could the point on the number line represent?

Record an estimate that is:

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.

Is 349 closer to 300 or 400?

Is 349 closer to 340 or 350?

Is 712 closer to 700 or 800?

Is 712 closer to 710 or 720?

Is 568 closer to 500 or 600?

Is 568 closer to 560 or 570?

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

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

Name the nearest multiple of 100 for 324.

Name the nearest multiple of 10 for 324.

Name the nearest multiple of 100 for 89.

Name the nearest multiple of 10 for 89.

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

reasoning.

What is the nearest multiple of 10 to 162? Is it 160 or 170? Explain or show your reasoning.