Math Lab Review

Prime/Composite

100

The prime number immediately before 100 is ____.

97

200

Write the first 3 prime numbers after 20.

23,29,31

300

Which digit can come at the place of the given blank to make the given number prime?  

                                       82_

a) 1

b) 2

c) 4

d) 5

a) 1

400

In a leap year, find out how many months have a prime number of days.

8 months 

500

Classify the following numbers into prime or composite. 63 59 18 47

Prime numbers - 59 and 47

Composite numbers - 63 and 18

Multiplies/ Factors

100

Whats the difference between Multiplies and factors 

• A multiple of a number is the result of multiplying that number by a whole number.
• A factor of a number is a whole number that divides evenly into that number without a remainder. 

200

What are the first 5 multiples of 3?

3,6,9,12,15

300

Find all the factors of 24.

1,2,3,4,6,812,24

400

Find the greatest common factor (GCF) of 48 and 72.

24

500

Find the Least Common Multiple (LCM) of 50 & 75

150

Exponents

100

Which expression represents the product of n³ and n⁴?

A. n¹

B. n³

C. n⁷

D. n¹²

E. n³⁴

C. n⁷

200

What is 2 raised to the power of 3?

2³=2*2*2=8

300

Solve for x: 3^x = 81

3^{4 =}3*3*3*3=81

400

Which of the following is equivalent to

x⁵∙ x⁷ ∙ x?

A. x³⁵

B. x¹³

C. x¹²

D. x²

B. x¹³

500

Select all equivalent expressions for

3x³∙ 2x²y ∙ 4x²y.

A. 9x⁷y²

B. 24x⁷y²

C. 9x¹²y²

D. 24x¹²y²

E. 24y²x⁷

B. 24x7y2

E. 24y2x7

Order Of Operations

100

What is the Order of Operations?

P ()

E x²

MD +/ from left to right 

AS +- left to right 

200

40 – 4 ∙ 3²

4

300

Simplify the expression.

19 – 3² · 2 + (7 – 4)

4

400

(3+5)/-6²

8/-36 or 2/-9

500

a) What is the value of 7²– 2[3 + 2(5 – 1)]?

A. 9

B. 517

C. 27

D. -8

c.27

Combining Like Terms

100

Are z⁴w and w⁴z like terms? Why or why not?

No they are not like terms, because the exponents are not attached to the same variable. 

200

Simplify: 3x + 5x - 2x

6x

300

 5m²n + 2mn² - 3m²n - 4mn²

2m²n - 2mn²

400

3x²y - 2xy² + 5x²y + 4xy² - 2xy

8x²y + 2xy² - 2xy

500

4x³y + 3xy³ – 2x³y

Which of the following is equivalent to the expression above?

A. 5x³y³

B. 4x³y + xy³

C. 6x³y + 3xy³

D. 2x³y + 3xy³

D. 2x³y + 3xy³