Multiplication and Arrays in Math

Front

What is multiplication?

Back

Multiplication is a way to add a number to itself a certain number of times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3.

Front

What is an array in math?

Back

An array is a way to organize objects in rows and columns. For example, a 3 x 4 array has 3 rows and 4 columns.

Front

How can you find the total in a multiplication problem?

Back

You can find the total by multiplying the number of groups by the number in each group. For example, 5 groups of 2 is 5 x 2 = 10.

Front

What does the equation 1 x 3 = ? mean?

Back

It means you have 1 group of 3. The answer is 3.

Front

If you have 4 rows of 5 apples, how many apples do you have in total?

Back

You have 4 x 5 = 20 apples.

Front

What is the commutative property of multiplication?

Back

The commutative property says that changing the order of the numbers does not change the product. For example, 2 x 3 = 3 x 2.

Front

What is the identity property of multiplication?

Back

The identity property states that any number multiplied by 1 remains the same. For example, 7 x 1 = 7.

Front

What is the product of 0 and any number?

Back

The product of 0 and any number is always 0. For example, 0 x 5 = 0.

Front

How can you use addition to solve a multiplication problem?

Back

You can use repeated addition. For example, 4 x 3 can be solved as 3 + 3 + 3 + 3 = 12.

Front

What is 3 x 4 in an array?

Back

In an array, 3 x 4 means there are 3 rows with 4 items in each row.