Divisibility Rules 3 and 6

Front

The divisibility rule for 3 is we can divide a number evenly by 3 if __________

Back

if the sum of the digits can also be divided by 3.

Front

Determine whether 123 is divisible by 3.

Back

Yes, because the sum of the digits (1 + 2 + 3 = 6) is divisible by 3.

Front

True or false? These numbers can be divided evenly by 6: 96, 390, and 6,120.

Back

True

Front

The divisibility rule for 2 states that a number is divisible by 2 when it ends in...

Back

0, 2, 4, 6, or 8.

Front

Choose the number that is NOT divisible by 3: 45, 42, 39, 38.

Back

38.

Front

What is the first step to check if a number is divisible by 3?

Back

Add all the digits of the number together.

Front

If the sum of the digits of a number is 15, is the number divisible by 3?

Back

Yes, because 15 is divisible by 3.

Front

What is the divisibility rule for 6?

Back

A number is divisible by 6 if it is divisible by both 2 and 3.

Front

Is the number 54 divisible by 6?

Back

Yes, because it is divisible by both 2 (ends in 4) and 3 (5 + 4 = 9).

Front

What are the last digits that indicate a number is divisible by 2?

Back

0, 2, 4, 6, or 8.