Topic 1 Mid Topic Review

Number Line Expressions

100

1

1

200

2

2

300

3

3

400

4

4

500

5

5

Is It Rational?(If so, what type)

100

2/5

Yes - Fraction

200

0.45

Yes - it is a terminating decimal

300

0.3333333...

Yes - the decimal repeats

400

3.14159265359...

No

The decimal does not repeat OR terminate

500

5.364236423642...

Yes - the decimal repeats

Additive Inverses and Signs

100

What is the additive inverse of 23?

-23

200

What number do you get when you combine additive inverses?

0

300

What is the sign of the solution for the expression 2 + (-8)?

Negative

400

What is the sign of the solution for the expression -3 -(-5)?

Positive

500

What is the solution to the expression -9 + 13 + 9?

13

Amount of Change

100

What is the distance between 9 and 5 on a number line?

4 units

200

The temperature was 11⁰C in the morning and 18⁰C in the afternon. How much did the temperature change?

7⁰C

300

What is the distance between -5 and -19 on a number line?

14 units

400

What is the distance between -12 and 5 on a number line?

17 units

500

The temperature was 71⁰F in the morning. The temperature increased by 16⁰F in the afternoon and dropped 5⁰F by the evening. What was the total change in temperature by the evening?

11⁰F

Converting Fractions to Decimals

100

2/6

0.33333...

200

1/4

0.25

300

7/10

0.7

400

5/8

0.625

500

19/40

0.475