Divisibility Rules
What is the divisibility rule for 2?
The number must end in a 0,2,4,6,8
What divisibility rule applies when the sum of the digits are divisible by 3?
The divisibility rule for 3.
9
What is 345 divisible by?
5
Solve. 5 x 3 + (60 ÷ 60) + 20
36
What divisibility rule applies for a number must end in 0.
The Divisibility Rule for 10?
What divisibility rule applies when the last two digits are divisible by 4?
The divisibility rule for 4
Solve
42
16
What is 111 divisible by?
3
Solve. 74 -26 + 36 ÷ 9 x 2 (2 ÷ 1)
46
What are the 3 divisibility rules that work for 50?
2, 5, and 10
What divisibility rule applies for a number that ends in 0, 2, 4, 6, 8?
2
Write out the multiplication sentence for this exponent:
56
5 x 5 x 5 x 5 x 5 x 5
What is 5896 divisible by?
2
Solve. (5 x 10) - 3 x 42 + 48
50
What divisibility rule applies when the number must end in 5 or 0?
The Divisibility Rule for 5
Rule 2 and rule 3 apply.
What is the divisibility rule for 6?
Write out the multiplication sentence for this exponent:
84
8 x 8 x 8 x 8
What is a prime number?
A number divisible only by itself and 1
Solve. 5 x (6 + 6) - 32 + 14
29
Why do we use divisibility rules?
To help us determine the factors of numbers quickly and without having to do long division each time.
Which divisibility rules applies to 684? Hint, there are three!
2, 3, 4,
Solve:
53
125
What 3 divisibility rules work for 100?
2, 5 and 10
Solve. (5 x 7) x 2 - 56 + 23
22