Unit 1 Review

Integers OnlyApply SSS/DSD/KCC

100

-12   +   (-17)

-29

200

500   +    (-165)

335

300

52   -   (-52)

104

400

-13   -    67

-80

500

-79    -    (-47)

- 32

Adding/Subtracting Fractions

100

-5 1/3   +   8 2/3

Answer must be in simplest form.

3 1/3

200

-8 1/2   -   4

Answer must be in simplest form.

-12 1/2

300

-26 2/5   -   ( -11 1/5)

Answer must be in simplest form.

-15 1/5

400

-18 7/9   +   7 4/9

Answer must be in simplest form.

-11 1/3

500

-5 3/6   -   ( -10 2/3)

Answer must be in simplest form.

5 1/3

Adding/Subtracting Decimals

100

-13.4   +   (-8.6)

-22

200

-3.7   -   14.9

-18.6

300

-41.9   +   22

19.9

400

7.85   -   ( -31.03)

38.88

500

- 328.17   +   63.4

-264.77

Word Problems

100

The temperature at noon was 35.7^o F. By sunset, the temperature had dropped by 22.4^o F. What was the temperature at sunset?

13.3^o F

200

The temperature at noon was 23.7^o F. By sunset, the temperature had dropped by 27.4^o F. What was the temperature at sunset?

- 3.7^o F

300

The highest point on a mountain is at 497 ft above sea level. The lowest point on that same mountain is 521 ft below the highest point. What is the elevation of the lowest point? 

- 24 ft

400

If a deep-sea diver dives from the surface to 77 feet below the surface and then dives down 17 more feet, find the diver's present depth beneath the surface. Fill in the sentence for your answer. 

The diver's present depth is _______ ft beneath the surface.

The diver's present depth is 94 ft beneath the surface. 

500

Paul dives from a platform that is 6.5 meters above water. He dives to 4.6 meters below the surface of the water. How far does Paul's dive take him? Fill in the sentence for your answer. 

Paul's dive takes him _______ meters.

Paul's dive takes him 11.1 meters.

Math Vocabulary

100

What TWO rules can help us solve addition problems involving positive and negative numbers? You must know that they stand for!

SSS = Same Sign Sum

DSD = Different Signs Difference

200

How do you determine the sign when adding a positive AND negative number?

The answer will have the same sign as the number with the greatest absolute value.

300

What is the definition of absolute value?

Absolute Value - the distance a number is away from zero 

400

What is the definition of the additive inverse property?

Additive Inverse Property - when two numbers have a sum of zero or when adding opposites the sum will be zero

500

Provide an example showing the Additive Inverse Property. 

Answers will vary. 

Ex:    1 +  (-1)  =  0