Multiplication as Comparison

Front

What does it mean when we say 'A is B times as many as C'?

Back

It means that A can be calculated by multiplying B by C. For example, if A is 36 and B is 9, then C is 4, because 36 = 9 x 4.

Tags

CCSS.4.OA.A.1

Front

How do you write a multiplication equation from a word problem?

Back

Identify the quantities involved and their relationships. Use the phrase 'is times as many as' to set up the equation. For example, '36 is 9 times as many as 4' translates to 36 = 9 x 4.

Tags

CCSS.4.OA.A.1

Front

What is the multiplication equation for '8 times as many as 4'?

Back

The multiplication equation is 8 x 4 = 32.

Tags

CCSS.4.OA.A.1

Front

If Mrs. Canady's class sees 5 famous people, how many does Mrs. Karns's class see if they see 8 times as many?

Back

Mrs. Karns's class sees 8 x 5 = 40 people.

Tags

CCSS.4.OA.A.1

Front

How do you determine how many friends Shelly has if Robert has 8 friends and Shelly has 2 times as many?

Back

You multiply the number of friends Robert has by 2: 8 x 2 = 16.

Tags

CCSS.4.OA.A.1

Front

What is the equation to find out how many cats Julie has if she has 3 times as many as Meredith, who has 6 cats?

Back

The equation is 3 x 6 = 18.

Tags

CCSS.4.OA.A.1

Front

What is the concept of multiplication as comparison?

Back

Multiplication as comparison involves using multiplication to express how many times one quantity is compared to another.

Tags

CCSS.4.OA.A.1

Front

How can you express 'twice as many' in a multiplication equation?

Back

'Twice as many' can be expressed as multiplying by 2. For example, if a person has 10 apples, 'twice as many' would be 2 x 10 = 20.

Tags

CCSS.4.OA.A.1

Front

What is the first step in solving a multiplication comparison problem?

Back

Identify the quantities involved and determine the relationship between them, such as how many times one quantity is compared to another.

Tags

CCSS.4.OA.A.2

Front

If a class sees 12 people and another class sees 3 times as many, how many does the second class see?

Back

The second class sees 3 x 12 = 36 people.

Tags

CCSS.4.OA.A.2