Multiplication- Double Digits

Front

What is multiplication?

Back

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

Front

What does it mean to multiply double digits?

Back

Multiplying double digits means multiplying numbers that have two digits each, such as 12, 34, or 56.

Front

What is the product of 19 and 15?

Back

285

Front

If a pet store sold 74 puppies at $65 each, how much money did they make?

Back

$4,810

Front

What is the product of 15 and 32?

Back

480

Front

What is the product of 44 and 23?

Back

1,012

Front

What is the product of 836 and 5?

Back

4,180

Front

How do you check your multiplication answer?

Back

You can check your multiplication answer by using the inverse operation, which is division. For example, if you calculated 19 x 15 = 285, you can check by dividing 285 by 15.

Front

What is the distributive property in multiplication?

Back

The distributive property states that a(b + c) = ab + ac. This means you can break apart one of the numbers to make multiplication easier.

Front

What is an example of using the distributive property with 15 x 32?

Back

You can break 32 into 30 and 2. So, 15 x 32 = 15 x (30 + 2) = (15 x 30) + (15 x 2) = 450 + 30 = 480.