Divison
Is 468 divisible by 2?
468 ÷ 2 = ?
Yes, Rule: A number is divisible by 2 if it ends in 0, 2, 4, 6, or 8.
468 ends in 8 ✔
Answer: 234
What is the first 3 factors of 9
1,2,3
What is the first 5 multiples of 5
5,10,15,20,25
List the first 5 multiples of 3, skipping one count each time.
3, 9, 15, 21, 27
Is 564 divisible by 3?
Yes, Add the digits:
5 + 6 + 4 = 15
Since 15 is divisible by 3,
564 is divisible by 3.
What are the first 4 factors of 10
1,2,5,10
what is the first 6 multiples of 9
9,18,27,36,45,54
List the first 5 multiples of 6, skipping one count each time.
6, 18, 30, 42, 54
Is 816 divisible by 4?
816 ÷ 4 = ?
Yes, Rule: Look at the last two digits. If they are divisible by 4, the number is divisible by 4.
Last two digits: 16 → 16 ÷ 4 = 4
Answer: 204
What are the factors of 5
1,5
what is the first 9 multiples of 8
8,16,24,32,40,48,56,64,72
List the first 5 multiples of 7, skipping one count each time.
7, 21, 35, 49, 63
Is 729 Divisible by 9?
729 ÷ 9 = ?
Rule: Add the digits. If the sum is divisible by 9, the number is divisible by 9.
7 + 2 + 9 = 18 → 18 ÷ 9 = 2
Answer: 81
What is the first 3 factors of 6
1,2,3,6
What is the first 8 multiples of 7
7,14,21,28,35,42,49,56
List the first 5 multiples of 8, skipping one count each time.
8, 24, 40, 56, 72
Is 2,400 divisible by 8?
2,400 ÷ 8 = ?
Yes, Rule: Look at the last three digits. If they are divisible by 8, the number is divisible by 8.
400 ÷ 8 = 50
Answer: 300
What is 4X5
20
What are first 4 factors of 15
1,3,5,15
what is the first 9 multiples of 12
12,24,36,48,60,72,84,96,108
List the first 5 multiples of 9, skipping one count each time.
9, 27, 45, 63, 81