Multiply by Multiples of 10

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3).

Front

What does it mean to multiply by a multiple of 10?

Back

Multiplying by a multiple of 10 means you are multiplying a number by 10, 20, 30, etc. This makes it easier to calculate because you can just add a zero to the number being multiplied.

Front

What is 7 x 30?

Back

210

Front

What is 80 x 3?

Back

240

Front

What is 40 x 7?

Back

280

Front

What is 40 x 4?

Back

160

Front

What is 4 x 20?

Back

80

Front

How do you multiply a number by 10?

Back

To multiply a number by 10, you simply add a zero to the end of that number. For example, 5 x 10 = 50.

Front

What is the product of 6 and 20?

Back

120

Front

What is 5 x 30?

Back

150