Multiplication two digits by one digit Review

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the process of adding a number to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times (3 + 3 + 3 + 3).

Front

What does it mean to multiply a two-digit number by a one-digit number?

Back

It means to take a number that has two digits (like 20 or 61) and multiply it by a number that has only one digit (like 9 or 7).

Front

Calculate 20 x 9.

Back

180

Front

Calculate 61 x 7.

Back

427

Front

Calculate 58 x 3.

Back

174

Front

Calculate 78 x 8.

Back

624

Front

Calculate 91 x 5.

Back

455

Front

What is the product of two numbers?

Back

The product is the result of multiplying two numbers together.

Front

What is the commutative property of multiplication?

Back

The commutative property states that changing the order of the numbers in a multiplication problem does not change the product. For example, 3 x 4 = 4 x 3.

Front

What is the associative property of multiplication?

Back

The associative property states that when multiplying three or more numbers, the way in which the numbers are grouped does not change the product. For example, (2 x 3) x 4 = 2 x (3 x 4).