Comparing and Ordering Rational Numbers

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Comparing and Ordering Rational Numbers

Intervention Lesson L73

1.

Plot and label negatives are

145 and - 145 on mirror images of

the the

number line below. Notice how the positives. So - 145 is opposite 145 .

23

22

2 5

22

21

2 5

21

2

2 5

0

2 5

1

1

2 5

2

2

2 5

3

2. Plot and label 235 and - 235 on the number line above. 3. Plot and label 1.3 and - 1.3 on the number line below.

23 22.5 22 21.5 21 20.5 0 0.5 1 1.5 2 2.5 3

4. Plot and label 2.8 and - 2.8 on the number line above.

5.

Plot

and

label

4 5

and

-

4 5

on

the

number

line

below.

The

scale

is

by

tenths,

so

think

4 5

=

180.

23

22

21

0

1

2

3

6. Plot and label 1.5 and - 1.5 on the number line above.

7.

Plot For

and label negatives,

-th2in12k,

a-b0o.u3t,thaendop2p35oosintet.he

number

line

above.

Copyright ? by Savvas Learning Company LLC. All Rights Reserved.

L73 (student p. 1)

MDIS 2.0

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Comparing and Ordering Rational Numbers (continued)

On the number line, numbers increase in value from left to right.

So,

-

4 5

<

- 0.3.

8.

Use the number line on - 1.5, - 212, - 0.3, and

the 235

previous in order

page to write 45, - 45, 1.5, from least to greatest.

Intervention Lesson L73

Use the number line to compare numbers. Fill in each circle with 7 or 6 .

23

22

21

0

1

2

3

9. 2.3 12. - 2.7

- 1.4 - 2.3

10. - 235 13. - 1.75

- 1.3 - 145

11. 1.6

145

14. - 0.25

- 0.5

Place each set of numbers on the number line. Then write the numbers in order from least to greatest.

15. 2, - 1.5, - 214, 1.75, - 1

23 22 21 0

1

2

3

16. - 1.8, - 45, - 15, - 1, 1.3

22

21

0

1

2

17. - 113, 256, 1, - 216, 123

23 22 21 0 1 2 3

18. Reasoning How can you easily tell that 5.7 is greater than - 8.6?

Copyright ? by Savvas Learning Company LLC. All Rights Reserved.

L73 (student p. 2)

MDIS 2.0

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