Multiplying numbers

What is Multiplication?

Multiplication- is a mathematical operation of multiplying 2 or more numbers called factors. The answer is the product.

 

There are many different ways kids are taught to multiply numbers such as: groups of, multiplying using an array, and by breaking apart the number into smaller numbers that you already know the answer to and then adding them.

Multiplying using groups of also know as the commutative property of multiplication.

If I have 12 pennies I could divide them in to 2 groups of 6, or 3 groups of 4. The number of groups goes in the first spot then the number in each group goes in the second spot so 2 X 6 = 12 and
3 X 4 = 12

It is important for students to understand these different methods of  multiplication. Most people prefer one method over the other. Everyone is different, and it is alright to change your preferred method of multiplication many times or as you grow up a further understand the many different ways to multiply numbers to get the answer.

Multiplying using arrays

Multiplying using arrays is like I have 5 rows and 4 columns.
X X X X
X X X X
X X X X
X X X X
X X X X

Here is an activity you can use to help you understand multiplication using arrays.
http://www.haelmedia.com/OnlineActivities_txh/mc_txh3_002.html

Multiplication song from School House Rock

Here is a video about multiplication