Multiplication as a Comparison

Front

What is multiplication as a comparison?

Back

Multiplication as a comparison means using multiplication to compare two quantities. For example, if one quantity is 3 times larger than another, we can express this relationship using multiplication.

Front

If a rectangle has a width of 6 cm and the length is 3 times the width, what is the length?

Back

18 cm

Front

What is the formula to find the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width)

Front

If Meredith has 6 cats and Julie has 3 times as many, how can we express Julie's cats using an equation?

Back

3 x 6 = 18

Front

What is the perimeter of a rectangle with a width of 6 cm and a length of 18 cm?

Back

48 cm

Front

If Porter is 8 times as old as Jack, and Jack is 4 years old, how can we find Porter's age?

Back

8 × 4 = 32

Front

What does the equation 28 = 4 x 7 mean?

Back

The number 28 is 4 times as many as 7 and 7 times as many as 4.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

If a number is 5 times as many as another number, how can we express this relationship?

Back

If the smaller number is x, then the larger number is 5 × x.

Front

What is the relationship between multiplication and repeated addition?

Back

Multiplication is a way to add the same number multiple times. For example, 4 × 3 means adding 4 three times: 4 + 4 + 4.