Unit 4 Study Guide

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

If hotdogs come in packages of 10 and buns in packages of 8, how can you find the number of packages needed to avoid leftovers?

Back

To avoid leftovers, find the least common multiple (LCM) of the two package sizes.

Front

How many hotdogs and buns does Jessica need to buy if she wants to serve 40 hotdogs?

Back

Jessica needs to buy 4 packages of hotdogs (40 hotdogs) and 5 packages of buns (40 buns).

Tags

CCSS.5.OA.B.3

Front

What expression represents Ashley's wish to have 3 times the amount of jelly beans Stacy has?

Back

The expression is 3b, where b is the number of jelly beans Stacy has.

Tags

CCSS.6.EE.B.6

Front

What is the formula to calculate the LCM of two numbers?

Back

LCM(a, b) = (a * b) / GCF(a, b).

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer.

Front

What is a factor?

Back

A factor of a number is an integer that can be multiplied by another integer to produce that number.

Tags

CCSS.4.OA.B.4

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and identify the largest factor they have in common.

Front

What is the relationship between GCF and LCM?

Back

The product of the GCF and LCM of two numbers is equal to the product of the numbers themselves.