Arrays

Front

What is an array in mathematics?

Back

An array is a systematic arrangement of objects, usually in rows and columns, used to represent multiplication and addition.

Tags

CCSS.4.NBT.B.5

Front

How can you represent multiplication using an array?

Back

Multiplication can be represented by the number of rows multiplied by the number of columns in an array.

Tags

CCSS.3.OA.A.1

Front

What is the relationship between repeated addition and multiplication?

Back

Repeated addition is a way to express multiplication; for example, 4 + 4 + 4 can be expressed as 3 x 4.

Tags

CCSS.3.OA.A.1

Front

Write the multiplication sentence for an array with 4 rows and 6 columns.

Back

4 x 6 = 24.

Tags

CCSS.3.OA.A.1

Front

How do you convert a repeated addition sentence into a multiplication sentence?

Back

Count the number of times the number is added (the number of terms) and multiply it by the value being added.

Tags

CCSS.2.OA.C.3

Front

What is the number model for an array with 4 rows of 4?

Back

4 + 4 + 4 + 4 = 16.

Tags

CCSS.2.OA.C.4

Front

If an array has 2 rows and 4 columns, what is the multiplication sentence?

Back

2 x 4 = 8.

Tags

CCSS.3.OA.A.1

Front

What does the multiplication sentence 5 x 6 represent in terms of an array?

Back

It represents an array with 5 rows and 6 columns, totaling 30.

Tags

CCSS.3.OA.A.1

Front

How can you visually represent the equation 2 + 2 + 2 + 2 = 8?

Back

By creating an array with 4 rows of 2.

Tags

CCSS.2.OA.C.4

Front

What is the total number of items in an array with 3 rows and 5 columns?

Back

15, because 3 x 5 = 15.

Tags

CCSS.3.OA.A.1