Multiplication two digits by one digit Review

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 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

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

Back

It means to take a two-digit number and multiply it by a single-digit number, which can be thought of as repeated addition of the two-digit number.

Front

Calculate 71 x 6.

Back

426

Front

Calculate 75 x 2.

Back

150

Front

Calculate 83 x 3.

Back

249

Front

Calculate 20 x 9.

Back

180

Front

Calculate 91 x 5.

Back

455

Front

What is the product of a number?

Back

The product is the result of multiplying two or more 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, 4 x 5 = 5 x 4.

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).