Divisibility

Front

What does it mean for a number to be divisible by another number?

Back

A number is divisible by another number if you can divide it 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 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 30 divisible by 3?

Back

Yes, because the sum of the digits (3 + 0 = 3) is divisible by 3.

Front

Is 45 divisible by 9?

Back

Yes, because the sum of the digits (4 + 5 = 9) is divisible by 9.

Front

Which of the following numbers is divisible by 4? 12, 15, 17, 19

Back

12, because the last two digits (12) form a number that is divisible by 4.

Front

What is an even number?

Back

An even number is any integer that is exactly divisible by 2.

Front

What is an odd number?

Back

An odd number is any integer that is not divisible by 2.

Front

Is 64 divisible by 2?

Back

Yes.