Finding Area through Multiplication and Addition

What does the area of a rectangle represent?

• The length of the rectangle

• The width of the rectangle

• The perimeter of the rectangle

• The number of square units needed to cover the rectangle

Tags

CCSS.3.MD.C.5A

How can you calculate the area of a rectangle?

• By subtracting the width from the length

• By multiplying the length by the width

• By dividing the length by the width

• By adding the length and width

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is a common mistake when calculating the area of a rectangle?

• Multiplying the perimeter

• Adding instead of multiplying

• Not knowing which sides to multiply

• Multiplying the same side twice

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What should you not do when calculating the area of a rectangle split into sections?

• Multiply unrelated sides

• Use addition instead of multiplication

• Ignore one of the sections

• Calculate the area of each section separately

Tags

CCSS.3.MD.C.7D

How do you find the area of a section of a rectangle?

• Add the number of rows to the number of columns

• Divide the number of rows by the number of columns

• Subtract the number of columns from the number of rows

• Multiply the number of rows by the number of columns

Tags

CCSS.3.MD.C.5A

What is the area of the blue plate in the building block table example?

• 12 square feet

• 30 square feet

• 18 square feet

• 24 square feet

Tags

CCSS.3.MD.C.7D

What is the area of the green plate in the building block table example?

• 24 square feet

• 12 square feet

• 30 square feet

• 18 square feet

Tags

CCSS.3.MD.C.7D

Why do we use parentheses in the number sentence for calculating total area?

• To indicate subtraction

• To indicate division

• To group numbers for multiplication before addition

• To make the equation look complex

What is the total area of the building block table?

• 12 square feet

• 18 square feet

• 30 square feet

• 60 square feet

Tags

CCSS.6.G.A.4

What mathematical operations are essential for calculating the area of a rectangle?

• Addition and subtraction

• Multiplication and division

• Multiplication and addition

• Subtraction and division

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3