Unit 2 Review

PDF Conversions

100

Turn the following fraction into a decimal:

1/4

1/4 = 0.25

200

Turn the following decimal into a fraction:

0.133

0.133 = 133/1000

300

Turn the following percentage into a decimal:

43%

43% = 43/100 = 0.43

400

Turn the following decimal into a fraction:

6.571

6.571 = 6 571/1000

500

Turn the following fraction into a decimal:

7 3/8

7 3/8 = 7 + 0.375 = 7.375

All Sorts of Stuff

100

Which of the following are equivalent to -5/6?

A. -(5/6)

B. -5/-6

C. -5/6 * 1

D. -5/6 * -1

A and C are both equivalent to -5/6!

A. -(5/6)

B. -5/-6

C. -5/6 * 1

D. -5/6 * -1

200

Which of the following are equivalent to -9/10?

A. -1 * -(9/10)

B. 9/-10

C. -9/10

D. -9/-10

B and C are both equivalent to -9/10!

A. -1 * -(9/10)

B. 9/-10

C. -9/10

D. -9/-10

300

Joshua bought a bag of hot chips that costs $2 every day for 8 days. How much money did Joshua spend on hot chips?

$2 * 8 = $16

400

Taliah played basketball for a whole week. Each day, she made 8 points. How many total points did Taliah make at the end of the week?

8 * 7 = 56

500

Last weekend, Erica went shopping. She bought 2 pairs of shoes that were $10 each, 3 pairs of earrings that were $5 each, and 1 pair of pants that was $8. Write the expression that represents the amount of money Erica spent.

2*10 + 3*5 + 8

Multiplying and Dividing

100

Solve: -2 * (3/7)

-6/7

200

Solve: -2 ÷ (3/7)

-2 ÷ (3/7) = -2 * (7/3) = -14/3

= -4 2/3

300

Solve: -(3/2) ÷ -(10/7)

-(3/2) ÷ -(10/7) = -(3/2) * -(7/10)

= 21/20 = 1 1/20

400

Solve: 2 ÷ 3 4/5

2 ÷ 3 4/5 = 2 ÷ (19/5) = 2 * (5/19)

= 10/19

500

Solve: -2 1/5 * -1 3/4

-2 1/5 * -1 3/4 = -(11/5) * -(7/4)

= 77/20 = 3 17/20

Positive and Negative

100

If there is an ODD number of negative numbers in question, is the answer POSITIVE or NEGATIVE?

Negative - for example, (-1) * (-2) * (-3) = -6

An EVEN number of negative numbers means the answer is POSITIVE!

200

For the following question, determine whether the answer is POSITIVE or NEGATIVE:

(-23) * (-10) * (1)

Positive - there is an EVEN (2) number of negative signs!

300

For the following question, determine whether the answer is POSITIVE or NEGATIVE:

(-7) * (8) * (-12) * (-3)

Negative - there is an ODD (3) number of negative numbers!

400

For the following question, determine whether the answer is POSITIVE or NEGATIVE:

(9) * (12) * (8) * (-4)

Negative - there is an ODD (1) number of negative numbers!

500

For the following question, determine whether the answer is POSITIVE or NEGATIVE:

(-8) * (-6) * (-3) * (-9) * (-1)

Negative - there is an ODD (5) number of negative numbers!

PEMDAS

100

Solve: 4 * 7 + 5

PEMDAS!

4 * 7 = 28 + 5 = 33

200

Solve: (31 - 11) + 2 - 5

PEMDAS!

(31 - 11) = 20 --> 20 + 2 - 5 = 17

300

Solve: 3*(12 - 5) + 8 * 4

PEMDAS!

(12 - 5) = 7 --> 3 * 7 + 8 * 4

3 * 7 = 21 --> 21 + 8 * 4

8 * 4 = 32 --> 21 + 32 = 53

400

Solve: 7² - 8 + 11

PEMDAS!

7² = 49 --> 49 - 8 + 11 = 52

500

Solve: 8² + 6*(14 -12)

PEMDAS!

(14 - 12) = 2 --> 8² + 6*(2)

8² = 8*8 = 64 --> 64 + 6*(2)

6*2 = 12 --> 64 + 12 --> 76