LCM
GCF
Order for Rational Numbers
Inequality for Rational Numbers
Interpret Rational Numbers
100

What is the least common multiple (LCM) of 4 and 5?

20

100

What is the greatest common factor (GCF) of 4 and 8?

4

100

Order these from least to greatest: −2-2−2, 1.51.51.5, 000, −1.5-1.5−1.5

−2,−1.5,0,1.5

100

True or False: −2.5 > −3.2

True

100

What is the decimal equivalent of 1/5? 

0.2

200

Find the LCM of 3, 6, and 9.

18

200

What is the GCF of 15 and 20?

5

200

Which is greater, −1.75 or −1.25?

−1.25

200

Which inequality is true?
A) −3 < −1.5
B) −3 > −1.5

B) −3>−1.5

200

Convert −3/4 to a decimal.

-0.75

300

What is the least common multiple of 2, 3, and 4?

12

300

What is the greatest common factor of 12 and 18?

6

300

Write the following in order from least to greatest: -1/2, -3/2, 0, -5/4

-3/2, -5/4, -1/2, 0

300

Is −3.2 > −3.5 true or false?

True

300

Which of the following is closer to zero: −0.4 or 0.3?

0.3

400

What is the least common multiple of 4, 6, and 8?

24

400

Find the GCF of 24 and 36.

12

400

Order these numbers from greatest to least: −42, 41, −41.7 ,41.75 

41.75, 41, −41.7, −42

400

∣−1.5∣<∣2∣

Is it true or false, and why?

True; the absolute value of −1.5 is less than the absolute value of 2

400

Identify the opposite of −0.6.

0.6

500

What is the least common denominator for 1/4, 1/6, and 1/8.  

24

500

What is the greatest common factor of 42 and 63?

21

500

Explain why −0.5<−0.25

−0.5 is farther from zero on the number line, making it smaller than −0.25

500

Identify the incorrect statement, and explain why:
A) −0.75 > −1.5
B) −2.25 > −3.5
C) −0.5>0

 

Answer: C; −0.5 is less than 0

500

Explain why |-3| and |3|are equal.

The absolute value of any number is its distance from zero on a number line, regardless of direction, so |-3| and |3| are both 3.