Unit 1 Test (Math 7) - Rational Operations

Integers

100

What is the opposite of -42?

42

200

What is absolute value?

The distance from 0 on a number line; always given as a positive number.

300

What inequality sign fits in the blank?

>     <     =

|-2| ___ 2

equal to; =

400

What inequality sign fits in the blank?

>     <     =

|-6| ____ |-3|

greater than; >

500

Solve:

|8-12|

4

Addition

100

What do you need in order to add or subtract two fractions together?

Common denominator

200

Solve:

14+6.6

20.6

300

Solve:

9.4+5.8=

15.2

400

Write the additive inverses of each of the following: Each one is worth 100 points. Remember the phrase: keep, change, change

a. 5 - 3 

b. 4 + (- 2)

c. - 3 - (- 4)

d. - 9 + 3

a. 5 + (- 3)

b. 4 - 2

c. - 3 + 4

d. - 9 - (- 3)

500

Solve: Leave your answer as an improper fraction.

4/5 + 3/7=

43/35

Subtraction

100

Solve:

5-9

-4

200

Solve:

14-9.7

4.3

300

Solve:

26.4-5.2

21.2

400

Solve:

4.5-5.7

-1.2

500

Solve:

3 1/2 -4 3/4

-1 1/4

Multiplication

100

If you multiply a negative number times a negative number, your answer will be ___________. 

Positive

200

Solve: Each one is worth 100 points.

a. - 4 x - 2 =

b. 12(- 4) = 

a. 8

b. - 48 

300

Solve:

0.26 * 0.4

0.104

400

Solve:

0.203(0.543)

0.110229

500

Solve: Write your answer in the simplest form.

4/5xx12/2=

24/5

Division

100

If you divide a positive number times a negative number, your answer will be _________________.

Negative

200

Solve: Each one is worth 100 points.

-15-:3=

-24-:(-6)=

a. - 5

b. 4

300

Solve: Write your answer in the simplest form.

4/5 -: 12/2

2/15

400

Solve: 

16.4-:0.04

410

500

Solve: Keep your answer in decimal form. 

*It's not a repeating decimal.

20.3-:4

5.075

Fractions

100

If you answer both questions correctly, you get 200 points.

a. What is an improper fraction?

b. What is a mixed number?

a. An improper fraction is a fraction where the numerator (top number) is bigger/larger than the denominator (bottom number). 

b. A mixed number contains a whole number and a standard fraction. 

200

Convert to an improper fraction:

4 5/8

37/8

300

Convert to a mixed number:

23/4

5 3/4

400

Simplify the fraction:

100/140

5/7

500

Fill in the - of the equivalent fraction:

4/7 = -/49

28

Random

100

Solve: 

1/2 + 1/8

5/8

200

Solve:

10.2-(-1.2)

11.4

300

Solve:

3 1/2 -: -3/4

-4 2/3

400

How many 3/4 gallon tubs of ice cream can be made out of 7 gallons?

9 whole tubs with 1/3 of a tub left over

500

The fastest mile time ever recorded was by Hicham El Guerrouj, who can run a mile in 3.7 minutes. Assuming he doesn't slow down, how many miles can he run in 10 minutes?

a. 37 miles

b. 370 miles

c. 2.7 miles

d. 27 miles

A