Multiplication & Division using Arrays and Equal Groups

Front

What is multiplication?

Back

Multiplication is a way to add the same number several times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Tags

CCSS.3.OA.A.1

Front

What is division?

Back

Division is splitting a number into equal parts. For example, 12 ÷ 3 means splitting 12 into 3 equal groups, which gives 4.

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CCSS.3.OA.A.2

Front

What does an array represent in multiplication?

Back

An array is a visual representation of multiplication. It shows rows and columns. For example, 2 rows of 5 means 2 x 5.

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CCSS.4.NBT.B.5

Front

How do you find the total in an array?

Back

To find the total in an array, multiply the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What is an equal group?

Back

Equal groups are groups that have the same number of items. For example, if you have 12 apples in 3 equal groups, each group has 4 apples.

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CCSS.2.OA.C.3

Front

What multiplication expression does this array represent? X X X X X
X X X X X

Back

5 x 2 = 10.

Tags

CCSS.3.OA.A.1

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If 3 x 4 = 12, then 12 ÷ 4 = 3.

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CCSS.4.NBT.B.6

Front

How can you represent 14 using equal groups?

Back

You can represent 14 as 2 equal groups of 7 or 7 equal groups of 2.

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CCSS.2.OA.C.3

Front

What does the equation 14 ÷ 2 = 7 mean?

Back

It means that if you divide 14 into 2 equal parts, each part has 7.

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CCSS.3.OA.A.2

Front

What is an array with 3 rows and 4 columns?

Back

An array with 3 rows and 4 columns represents the multiplication expression 3 x 4 = 12.

Tags

CCSS.3.OA.A.1