GCF/LCM/Expressions Review

Evaluate:

b(6- 2 ) + 4, where b = 3

• 24

• 20

• 16

• 8

What is the least common multiple of 6 and 4?

• 2

• 6

• 12

• 24

What is the greatest common factor of 20 and 12?

• 2

• 4

• 5

• 6

Jack and Sally were picking up pebbles along a river. Sally collected 3 less pebbles than Jack.

Which expression BEST illustrates the situation above?

• 3 + S

• 3 - S

• J + S

• J - 3

An electrician charges $40 for each hour he works plus a $125 service charge. The total charge for a recent job was $1,205. Which equation could be used to determine the number of hours, h, that the electrician worked on the job?

• 40h + 1205 = 125

• 1205h + 40 = 125

• 40h + 125 = 1205

• 125h + 40 = 1205

Students on a field trip order lunches that each cost $8.95. The school pays the lunch bill plus a $1.35 tip for each lunch that is purchased. 

Which of these expressions represent the total cost that the school will pay for n lunches?

• 8.95 + 1.35 + n

• (8.95n + 1.35)n

• 8.95n + 1.35n

• 

• 1

• 2

• 3

• 6

Ron has d dollars.  Xavier has five dollars less than Ron.  Which expression represents the amount of money that Xavier has?

• $5 - d

• d - $5

• d + $5

• $5d

Find the LEAST COMMON MULTIPLE for 6, 8, and 12.

• 12

• 24

• 48

• 72

What is the correct value of n?

8 + 4 = n + 2

• 6

• 4

• 2

• 10