4.OA.1 - 4.OA.3 "Task Cards"

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 times 3 means adding 4 three times (4 + 4 + 4 = 12).

Front

What does it mean to find 'how many times' one number is compared to another?

Back

Finding 'how many times' one number is compared to another means dividing the larger number by the smaller number to see how many times the smaller number fits into the larger one.

Front

If there are 20 monkeys and 4 times as many monkeys as tigers, how do you find the number of tigers?

Back

To find the number of tigers, divide the number of monkeys (20) by 4. So, 20 ÷ 4 = 5 tigers.

Front

How do you calculate the total when you run multiple laps?

Back

To calculate the total laps run, multiply the number of laps run yesterday by the number of times more laps run today.

Front

If you read 5 times as long this week as last week, how do you find last week's reading time?

Back

To find last week's reading time, divide this week's reading time by 5.

Front

What is the relationship between the number of cookies eaten this week and last week if you ate 5 times as many?

Back

If you ate 5 times as many cookies this week, divide the number of cookies eaten this week by 5 to find out how many were eaten last week.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows how many times one value contains or is contained within the other.

Front

How do you express a number as a multiple of another number?

Back

To express a number as a multiple of another, divide the first number by the second number. For example, 42 cm is 6 times longer than 7 cm because 42 ÷ 7 = 6.

Front

What is division?

Back

Division is a mathematical operation that determines how many times one number is contained within another. For example, 12 ÷ 3 = 4.

Front

If a piece of string is 7 cm long and a piece of wool is 42 cm long, how do you find how many times longer the wool is?

Back

Divide the length of the wool (42 cm) by the length of the string (7 cm). So, 42 ÷ 7 = 6.