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.

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CCSS.2.OA.C.3

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.

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CCSS.2.OA.C.3

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.

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CCSS.1.G.A.3

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.

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CCSS.5.OA.B.3

Front

What is the result of 24 + 24?

Back

The result is 48, which is an even number.

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CCSS.2.OA.C.3

Front

What is half of 24?

Back

Half of 24 is 12.

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CCSS.5.OA.B.3

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.

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CCSS.3.OA.D.9

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.

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CCSS.3.OA.D.9

Front

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

Back

You should multiply the number by 2.

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CCSS.3.OA.A.3

Front

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

Back

You should divide the number by 2.

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CCSS.1.G.A.3