Exploring Arrays and Multiplication Concepts

What is the primary purpose of using arrays in multiplication?

• To add numbers quickly

• To visualize and organize numbers

• To subtract numbers easily

• To divide numbers accurately

Tags

CCSS.3.OA.A.1

How can the multiplication problem 2x3 be represented using an array?

• Two columns of two

• Two rows of three

• Three columns of three

• Three rows of two

Tags

CCSS.3.OA.A.1

What is the total number of unit squares in an array representing 3x2?

• 8

• 7

• 6

• 5

Tags

CCSS.3.MD.C.5A

What term is used to describe the number of unit squares inside a rectangle?

• Volume

• Perimeter

• Area

• Length

Tags

CCSS.3.OA.A.1

If an array has 5 rows and 2 columns, what is the total number of square units?

• 10

• 8

• 7

• 9

Tags

CCSS.3.OA.A.1

How many square units are there in an array with 5 columns and 6 rows?

• 25

• 30

• 35

• 40

Tags

CCSS.3.OA.A.3

What is the total number of panes of glass in a building with 3 rows and 5 columns of windows, each window having 6 panes?

• 90

• 80

• 70

• 60

Tags

CCSS.3.OA.A.1

How can you represent an array without drawing individual squares?

• By using different colors

• By writing the total number of squares

• By indicating the length and width on the outside

• By drawing circles instead of squares

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of a rectangle that is 3 centimeters across the top and 2 centimeters down the side?

• 4 square centimeters

• 7 square centimeters

• 5 square centimeters

• 6 square centimeters

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of a rectangle that is 4 inches by 4 inches?

• 18 square inches

• 16 square inches

• 14 square inches

• 12 square inches

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3