Arrays and area models can be used to represent multiplication sentences, where the number of rows and the number of columns are the factors,
and the total number of objects, or the area, is the product.

When a number is added to itself multiple times, this is called repeated addition.

A multiplication problem can be thought of as a repeated addition problem
where the first factor is the number of times the second factor is added.

An area model can be used to represent multiplication.
	The number of rows is the first factor.
	The number of columns is the second factor.
	The product is the area of the model, which can be found by counting the number of squares it is made up of.

Skip counting can also be used to model multiplication.
Skip count by the second factor the number of times given by the first factor.

The four operations are addition, subtraction, multiplication, and division.

An array can be used to represent a multiplication sentence.

	The number of rows is the first factor.
	The number of columns is the second factor.
	The total number of objects is the product.

The same array can be also be used to represent a related division sentence.

	The total number of objects is the dividend.
	The number of rows is either the divisor or the quotient.
	The number of columns is either the quotient or the divisor.