Chapter 2 ReviewNumber Relations

What is the correct way to round this number to the

nearest whole number? 3.86

a). 4

b). 3.8

c). 3.9

d). 3

Round the number 6993

To the nearest thousand

7,000

To the nearest hundred

7,000

RoundingMrs. Meyers and Mrs. Dondlinger were practicing rounding numbers. When they rounded 3,635,945, Mrs. Meyers rounded it to 4,000,000. Mrs. Dondlinger rounded it to 3,600,000. Who was right?

A. Mrs. Meyers was right.

B. Mrs. Dondlinger was right.

C. Mrs. Meyers and Mrs. Dondlinger were both wrong.

D. Mrs. Meyers and Mrs. Dondlinger were both right.

Rounding

Linda and Sarah were rounding numbers. When they rounded 1,193,418, Linda rounded it to 2,000,000. Sarah rounded it to 1,200,000. Who was right?

A. Linda was right.

B. Sarah was right.

C. Sarah and Linda were both wrong.

C. Linda and Sarah were both right .

Rounding Money

Round $37.75

Nearest ten dollar-

Nearest dollar-

$40.00

$38.00

Secret Numbers

The class is trying to guess Lydia’s secret number. The secret number rounds to 400. If it is less than 400 what could it be? Use a number line to prove it.

400

Secret Numbers

The class is trying to guess Lydia’s secret number. The secret number rounds to 400. If it is more than 400 what could it be? Use a number line to prove it.

400

Rounding to underlined place.

Round 22,543 to the place of the underlined digit. Show your work on a number line to prove your answer

22,540

Greater than or less than.

Which numbers are in order from greatest to least?

d. 10,547 10,567 10,576

c. 10,567 10,576 10,547

b. 10,547 10,576 10,567

a. 10,576 10,567 10,547

Greater than or less than?

> 4,000 + 800

a. 5,000

b. 4,600

c. 4,100

d. 4,200

Numbers lines!!!

Match each letter from the number line to the number that belongs there.

20 + 4

21.5

A B C twenty-oneA