Miss Orsi's Math

Remember, as we have been learning concepts of multiplication and division, we have focused on identifying 3 things:

• the WHOLE
• the NUMBER OF groups
• the SIZE OF the groups

When multiplying we are trying to determine the WHOLE - also called the PRODUCT.  We are usually given the NUMBER OF groups and the SIZE OF the groups, which are the FACTORS.

A multiplication equation (number sentence) is written as:

Number of Groups X Size of Groups = Whole

In an ARRAY:
Number of Groups is the ROWS
Size of the Groups is the COLUMNS

When dividing we already know the WHOLE - also called the DIVIDEND and we are trying to determine either the NUMBER OF groups or the SIZE OF the groups.  It just depends on the information already given (DIVISOR) which may be either the number of groups or the size of the groups.  The unknown is called the QUOTIENT (the answer to a division equation).

A division equation (number sentence) is written as:

Whole / Number of Groups OR Size of Groups = 
Unknown (which is either the number of groups or the size of the groups)

Dividend / Divisor = Quotient