Divisibility
How do I know 24 is divisible by 2?
Because it is an even number.
Name the factors of 18
1, 2, 3, 6, 9, 18
What is the product of 4 and 7.
28
How would you find the product of this problem using partial products? 2 x 24
2 x 20 and 2 x 4
4 x 7 = 7 x 4
Commutative
The number 10 is divisible by....
2, 5
Name the factors of 24.
1, 2, 3, 6, 8, 24
72
35 x 4
30 x 4 and 5 x 4
(3 x 4) x 2 = 3 x (4 x 2)
Associative Property
What can numbers ending with a 5 be divided by?
5
Name the factors of 13.
1, 13
Ten times the number 3
30
7 x 12
7 x 10, 7 x 2
Identity
If the digits add up to a number that is also divisible by 3.
Name the factors of 30.
1, 2, 3, 10, 15
Five packs of candy. Each pack contains 3 pieces.
15
2 x 20, 2 x 8
1,560 x 0 = 0
Zero
When a number is ends with a 0, it is divisible by.....
10
Name the factors of 20
1, 2, 4, 5, 10, 20
15 x 2
30
3 x 24
3 x 20, 3 x 4
5 x (7 + 9) is also (5 x 7) + (5 x 9)
Distributative