Divisibility Rules 1
The number must be an even number.
Divisibility Rule for 2
Types of average
mean, median, mode
Name 2 factors of 32
1 and 32 2 and 16 4 and 8
There were 60 kids in the cafeteria for lunch. The table can fit between 3 and 20 students at each table. How many different ways are there?
2
What multiplication equation represents 3 groups of 5?
3x5=15
The number must end in 0.
Divisibility Rule for 10
sum
Name 4 factors of 100
1 and 100 2 and 50 4 and 25 5 and 20 10
Draw (with x's) rows and columns that would show 2 x 6
x x x x x x
x x x x x x
Which number represents the product in:
8 x 3 = 24
24
The number must end in 5 or 0.
Divisibility Rule for 5
At right angles to the horizon
vertical
Name all 3 factors of 25
1 and 25 5
If Anthony is trying to organize his class of 20 students into rows for the class photo and each row is to have equal number of students. What possible arrangements can he have?
2 rows of 10
4 rows of 5
5 rows of 4
What is 144 divided by 12?
12
Which rule/rules works for 335
divisible by 5
length, width, height
dimensions
Name all 4 factors of 8
1,2,4,8
Draw a picture to show 4 groups of 3. Then write a multiplication equation.
x x x x 4x3=12
x x x x
x x x x
What are the factors of 12?
1,2,3,4,6,12
These 3 rules work for 100.
Divisible by 2, 5 and 10
millimeter, centimeter, decimeter, meter, kilometer
metric system
Name all the factors of 24
1,2,3,4,6,8,12,24
Mr. Adams had 28 basketballs to put in some boxes. All of the boxes must have the same number of basketballs. How many different ways can he group them?
6
What are the factors of 36?
1,2,3,4,6,9,12,18,36