GCF LCM and Ratios

What does GCF stand for?

What does LCM stand for?

Which is not a prime number?

• 13

• 7

• 14

• 11

Tags

CCSS.4.OA.B.4

Prime Numbers are the _____ _______ of all numbers

Tags

CCSS.4.OA.B.4

What is the definition of a prime number?

Tags

CCSS.4.OA.B.4

What is the definition of a composite number?

Tags

CCSS.4.OA.B.4

What kind of chart do you use to find the GCF?

• B

• T

• Ladder

• Tree

What is the number on top of the T chart called?

• product

• factor

• greatest

• solution

Tags

CCSS.4.OA.C.5

If you get to a "twin" what do you do?

• STOP

• List all factors

• Start over

• relist it

Tags

CCSS.4.OA.B.4

What is the first step when you find the LCM

• Skip Count

• Multiple

• Reverse

• make a T chart