Multiplication

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 4 x 5 means adding 4 five times (4 + 4 + 4 + 4 + 4).

Front

What does the multiplication sentence 4 x 5 represent?

Back

It represents adding 4 a total of 5 times, which equals 20.

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder. For example, in the multiplication sentence 4 x 3 = 12, both 4 and 3 are factors of 12.

Front

What is the product of 80 x 5000?

Back

The product is 400,000.

Front

If 3 is one factor of 12, what is the other factor?

Back

The other factor is 4, because 3 x 4 = 12.

Front

How do you calculate the total cost of multiple items?

Back

Multiply the cost of one item by the number of items. For example, if one chair costs $5 and you buy 4 chairs, the total cost is 5 x 4 = $20.

Front

What are partial products?

Back

Partial products are the results of multiplying each digit of one number by each digit of another number before adding them together. For example, in 27 x 6, you can break it down into (20 x 6) + (7 x 6).

Front

What is the multiplication sentence for 4 + 4 + 4 + 4 + 4?

Back

The multiplication sentence is 4 x 5.

Front

What is the multiplication of 27 x 6?

Back

The product is 162.

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.