Math 7 Review

A

100

(-94)+14

-80

200

-34 - (-46)

12

300

(120) x (-3)

-360

400

(-246)/6

-41

500

45 - [10² x (60/3)] /50

45 - [100 x 20]/50

45 - [2000]/50

45 - 40 = 5

B

100

(-120)+(-52)

-172

200

-12 - 33

-45

300

- 35 x 5

-175

400

-5 x [24 + 8² - 5]

-5 x [24 + 64 -5]

-5 x [88 - 5]

-5 x  83 = -415

500

-2 x [15- (7² x 15/5)]

-2 x [15- 49 x 3]

-2 x [15 - 147]

-2 x (-132) = 264

C

100

67+(-79)

-12

200

(-94)x(-3)

282

300

(-125)/(-5)

25

400

12² + [66/(-2)]

12² + [-33]

144 + (-33) = 111

500

-13 + [8 x 4 - (15/3)]

-13 + [32 - 5]

-13 + 27 = 14

D

100

Which set is a subset of integers?

a. natural numbers
b. irrational numbers

a. natural numbers

200

Compare the number, 

-66 ___ 76

<

300

Which number is greater than -56 but less than 53?

   a. -48    b. 48      c. -55   d. both a and b

d

400

If the absolute value of a number is 24,what could be number?

- 24 or 24

500

Which of the following statements is true about the number line?

A. Positive numbers are to the left of zero.

B. Negative numbers are to the right of zero.

C. Zero is neither positive nor negative.

C

E

100

Which statement is TRUE between integers and rational numbers?

A. all rational numbers are integers.

B. all integers are rational numbers because they can be written as a ratio of two integers.

C. integers and rational numbers are completely different sets.

B

200

Compare the number, 

76 ___ 75

>

300

What is the value of the expression -4 x [18 +(-40)]?

 -4 x [18 +(-40)]

-4 X (-22) = 88

400

In the expression 8y - 67 , identify the constant?

-67

500

 Evaluate  8 - [4- (3 -7)] which reasoning is correct?

a. Subtract from left to right.

b. Evaluate inside parentheses first, then brackets.

c. Multiply before adding.

b