Everyday Math. 5 th Grade: Unit One . Unit One Vocabulary. Rectangular array: an arrangement of objects in rows and columns. Each row has the same number of objects and each column has the same number of objects.
5th Grade: Unit One
Composite numbers – numbers that have more than 2 factors
Step 1: Always begin with the number one.
1 x 24 = 24
Step 2: move on to the number two.
2 x 12 = 24
Step 3: continue on until you start repeating
(the next number to check after 4 is 5. 5 doesn’t go into 24 and
so you move on to 6. 6 has already been used so you know
you have found all of your factors.)