Divisibility Rules

Front

What is a divisibility rule?

Back

A rule that helps determine if one number can be divided by another without leaving a remainder.

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).

Front

What is the divisibility rule for 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

What is the divisibility rule for 4?

Back

A number is divisible by 4 if the last two digits form a number that is divisible by 4.

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is 0 or 5.

Front

What is the divisibility rule for 10?

Back

A number is divisible by 10 if its last digit is 0.

Front

Is 2,385 divisible by 10?

Back

No, because it does not end in 0.

Front

Is 36,928 divisible by 4?

Back

Yes, because the last two digits (28) are divisible by 4.

Front

Is 60,714 divisible by 3?

Back

Yes, because the sum of the digits (6+0+7+1+4=18) is divisible by 3.

Front

True or False: 40,500 is divisible by 6.

Back

True, because it is divisible by both 2 and 3.