Multiplication & Repeated Addition- Using Arrays

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What is multiplication?

Back

Multiplication is a way to add the same number many times. For example, 3 times 4 means adding 3 four times: 3 + 3 + 3 + 3.

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CCSS.3.OA.A.1

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How can you write '9 + 9 + 9 + 9 + 9 + 9 + 9' using multiplication?

Back

You can write it as 7 times 9.

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CCSS.2.OA.C.3

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What does the multiplication sentence '3 x 5' mean?

Back

It means adding 3 five times: 3 + 3 + 3 + 3 + 3.

Tags

CCSS.3.OA.A.1

Front

If you have an array with 4 rows and 3 columns, what multiplication fact does it represent?

Back

It represents 4 times 3.

Tags

CCSS.3.OA.A.1

Front

What is an array in math?

Back

An array is a way to organize objects in rows and columns to help with counting and understanding multiplication.

Tags

CCSS.3.OA.A.1

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How do you convert '5 + 5 + 5' into a multiplication sentence?

Back

You can write it as 3 times 5.

Tags

CCSS.3.OA.A.1

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What is the relationship between multiplication and repeated addition?

Back

Multiplication can replace repeated addition, making it easier to calculate.

Tags

CCSS.3.OA.A.1

Front

What does '2 x 4' mean in terms of repeated addition?

Back

It means adding 2 four times: 2 + 2 + 2 + 2.

Tags

CCSS.3.OA.A.1

Front

If you have 3 groups of 4 apples, how can you express this using multiplication?

Back

You can express it as 3 times 4.

Tags

CCSS.3.OA.A.1

Front

What is the multiplication fact for an array with 5 rows and 2 columns?

Back

It is 5 times 2.

Tags

CCSS.3.OA.A.1