Find the Area of a Grid Using Multiplication

Jason wants to find the area of a rectangle that is 6 feet long and 8 feet wide. He decides to break the area into two smaller rectangles with facts that he knows. Which two equations can help Jason find the area of the rectangle?

• (5 x 4) and (1 x 4)

• (5 x 8) and (1 x 8)

• (5 + 8) and (1 + 8)

• (6 x 5) and (6 x 2)

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

• A

• B

• C

• D

• E

Tags

CCSS.5.NF.B.5B

Quincy laid a gray playing card on a grid as shown in the diagram below.

He used the grid to help him find the area of the gray playing card. What is the area, in square inches, of the gray playing card Quincy laid on the grid?

Tags

CCSS.5.NF.B.4B

What is the area, in square units, of the rectangle?

(a)  

Tags

CCSS.5.NF.B.4B

Use the grid below to create an area model for the multiplication number sentence 6 x 7.

b. What is the product of 6 x 7?

(a)  

Tags

CCSS.4.NBT.B.5

Use the grid below to create an area model for the multiplication number sentence 6 x 7.

a.  Use skip counting to find the product.

(a)  

Tags

CCSS.4.NBT.B.5

Fill in the missing number

• 80

• 160

• 16

• 8

Tags

CCSS.4.NBT.B.5

Gregory uses this model to multiply 46×38. Enter the correct value for each area.

• Area A: 12,000, Area B: 1,800, Area C: 3,200, Area D: 480

• Area A: 70, Area B: 36, Area C: 48, Area D: 14

• Area A: 700, Area B: 90, Area C: 120, Area D: 14

• Area A: 1,200, Area B: 180, Area C: 320, Area D: 48

Tags

CCSS.4.NBT.B.5

Sandra used the multiplication array to solve 24 × 35.

What is the product of the problem represented in the array?

• 840

• 820

• 775

• 745

Tags

CCSS.4.NBT.B.5

The area model represents 72 X 59.

Which answer shows all the correct partial products?

• 3500 + 630 + 100 + 18

• 350 + 630 + 100 + 18

• 3500 + 100 + 63 + 18

• 3500 + 630 + 10 + 18

Tags

CCSS.4.NBT.B.5