Repeated Addition & Arrays

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times. For example, 3 + 3 + 3 = 3 x 3 = 9.

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CCSS.2.OA.C.4

Front

What is an array?

Back

An array is a way to organize objects in rows and columns. For example, 3 rows of 4 apples each.

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CCSS.2.OA.C.4

Front

How do you describe an array with 2 rows and 5 columns?

Back

You would say it has 2 rows of 5.

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CCSS.3.OA.A.1

Front

What are even numbers?

Back

Even numbers are numbers that can be divided by 2 without a remainder, like 0, 2, 4, 6.

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CCSS.2.OA.C.3

Front

What are odd numbers?

Back

Odd numbers are numbers that cannot be divided by 2 evenly, like 1, 3, 5, 7.

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CCSS.2.OA.C.3

Front

How many total objects are in an array of 4 rows and 3 columns?

Back

There are 12 objects (4 x 3 = 12).

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CCSS.3.OA.A.1

Front

If you have 5 pairs of shoes, how many shoes do you have in total?

Back

You have 10 shoes (5 pairs x 2 = 10).

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CCSS.3.OA.A.3

Front

What does it mean to take away one column from an array?

Back

It means to remove one vertical group of objects from the array.

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CCSS.2.OA.C.4

Front

How do you find the total number of items in an array?

Back

Multiply the number of rows by the number of columns.

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CCSS.3.OA.A.1

Front

What is the difference between rows and columns?

Back

Rows go across (horizontally), and columns go up and down (vertically).

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CCSS.5.G.A.1