Review GCF, LCM and positive and negative numbers

Which of the following pairs has a GCF of 9?

• 18 and 36

• 27 and 90

• 12 and 16

• 25 and 30

Find the GCF of 40 and 24

• 8

• 16

• 64

• 120

Jasper read a thermometer in the morning, it showed 

 $-3\degree$ . In the afternoon it showed  $5\degree$  .  What is the correct statement?

• -3 is less than 0, and 5 is greater than 0.

• -3 is greater than 0 and 5 is greater than 0

• -3 is greater than 0 and 5 is less than 0

• -3 is less than 0, and 5 is less than 0

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D