Divisibility Rules

Divisibility Rules

Rule for 1?

Silly, EVERYTHING is divisible by one!!

Rule for 2?

Is it an even number, then yes! Let's practice!

Multiple Choice

Is 1020459686948 divisible by two?

• Yes

• No

• Maybe So

Multiple Choice

Is 0 divisible by two?

• Yes

• No

• Maybe So

Multiple Choice

Is 66 + 33 divisible by two?

• Yes

• No

• Maybe So

Rule for 3?

If the sum of the digits is divisible by three, then yes!

Multiple Choice

Is 369 divisible by three?

• Yes

• No

• Maybe So

Multiple Choice

Is 566 divisible by three?

• Yes

• No

• Maybe So

Multiple Choice

Is 777 divisible by three?

• Yes

• No

• Maybe So

Rule for 4?

If the last two digits are divisible by four, then yes!

Multiple Select

Check all that are divisible by four.

• 466

• 124

• 333

• 588

Rule for 5?

If the last digit is zero or five, then yes!

Multiple Select

Check all that are divisible by five.

• 150

• 225

• 666

• None of the Above

Rule for 6?

If the number is divisible by both two and three, then yes!

Multiple Choice

Is 75 divisible by 6?

• Yes

• No

• Maybe So

Multiple Choice

Is 300 divisible by 6?

• Yes

• No

• Maybe So

Multiple Choice

Is 224 divisible by 6?

• Yes

• No

• Maybe So

Rule for 7?

Remove the last digit, double it, subtract it from the leftover, then yes!

Multiple Choice

Is 37961 divisible by 7?

• Yes

• No

• Maybe So

Multiple Choice

Is 238 divisible by 7?

• Yes

• No

• Maybe So

Multiple Choice

Is 221 divisible by 7?

• Yes

• No

• Maybe So

Rule for 8?

If the last three digits are divisible by 8, then yes!

Multiple Select

Check all that are divisible by 8.

• 640

• 584958

• 31563144

• 0

Rule for 9?

If the sum of the digits is divisible by 9, then yes!

Multiple Select

Check all that are divisible by 9.

• 62638

• 972

• 456759

• 777

Rule for 10?

If it ends in a zero, then yes! Pretty easy right! We don't need practice here!

Rule for 11?

Add and subtract digits when alternating to see!

Multiple Choice

Is 935 divisible by 11?

• Yes

• No

• Maybe So

Multiple Choice

Is 777 divisible by 11?

• Yes

• No

• Maybe So

Multiple Choice

Is 9186914 divisible by 11?

• Yes

• No

• Maybe So

Rule for 12?

If the number is divisible by both 3 and 4, then yes!

Multiple Choice

Is 3419436 divisible by 12?

• Yes

• No

• Maybe So

Multiple Choice

Is 137324 divisible by 12?

• Yes

• No

• Maybe So

Multiple Choice

Is 340608 divisible by 12?

• Yes

• No

• Maybe So

Great job! We are done!

Well one more...

Poll

How do you feel?

• Fantastic!

• So so

• Not so great

• I am completely confused