Multiplication & Division

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times (3 + 3 + 3 + 3) which equals 12.

Tags

CCSS.3.OA.A.1

Front

What is division?

Back

Division is a mathematical operation that represents the process of splitting a number into equal parts. For example, 12 divided by 3 (12 ÷ 3) means splitting 12 into 3 equal parts, which equals 4.

Tags

CCSS.3.OA.A.2

Front

How do you calculate the total cost of items bought?

Back

To calculate the total cost, multiply the price of each item by the quantity purchased and then add the costs together. For example, if grapes cost $2.49 per pound and 2 pounds are bought, the cost is 2.49 x 2 = $4.98.

Tags

CCSS.7.EE.B.3

Front

What is the formula for finding the cost per item when sharing?

Back

To find the cost per item when sharing, divide the total cost by the number of people sharing. For example, if a bag of oranges costs $7.65 and is shared by 5 friends, each pays 7.65 ÷ 5 = $1.53.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you determine how many full sets can be made from a total?

Back

To determine how many full sets can be made, divide the total number of items by the number of items in each set and take the whole number. For example, 572 erasers divided by 15 gives approximately 38 full sets.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

What is the process to find the total distance run over multiple days?

Back

To find the total distance run, add the distances from each day together. For example, if 1.58 km is run on the first day and 1.6 km on the second day, the total distance is 1.58 + 1.6 = 3.18 km.

Tags

CCSS.5.NBT.B.7

Front

How do you calculate miles per gallon for a vehicle?

Back

To calculate miles per gallon, divide the total miles traveled by the total gallons of gas used. For example, if a car travels 612 miles using 12 gallons, the miles per gallon is 612 ÷ 12 = 51.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. This means that if you multiply a number and then divide by the same number, you return to the original number. For example, 6 x 3 = 18 and 18 ÷ 3 = 6.

Tags

CCSS.4.NBT.B.6

Front

What does it mean to share equally?

Back

Sharing equally means dividing something into equal parts so that each person receives the same amount. For example, if 10 cookies are shared among 5 friends, each friend gets 10 ÷ 5 = 2 cookies.

Tags

CCSS.3.OA.A.2

Front

What is a word problem in mathematics?

Back

A word problem is a mathematical question presented in a narrative form, requiring the reader to extract the relevant information and perform calculations to find the answer.