Twice and Half

Front

What is an even number?

Back

An even number is any integer that can be divided by 2 without leaving a remainder. Examples: 0, 2, 4, 6.

Front

What is an odd number?

Back

An odd number is an integer that cannot be divided by 2 evenly. Examples: 1, 3, 5, 7.

Front

What does it mean to find half of a number?

Back

Finding half of a number means dividing that number by 2. For example, half of 10 is 5.

Front

What does it mean to find twice a number?

Back

Finding twice a number means multiplying that number by 2. For example, twice of 3 is 6.

Front

What is the result of 24 + 24?

Back

The result is 48, which is an even number.

Front

What is half of 24?

Back

Half of 24 is 12.

Front

If a number is even, what can you say about it when you add another even number?

Back

The sum of two even numbers is always even.

Front

If a number is odd, what can you say about it when you add another odd number?

Back

The sum of two odd numbers is always even.

Front

If you see the word 'twice' in a math problem, what should you do?

Back

You should multiply the number by 2.

Front

If you see the word 'half' in a math problem, what should you do?

Back

You should divide the number by 2.