Q2: Area and Irregular Area

Look at the picture: part of the rectangle is covered by squares. Each square has an area of 1 square centimeter. Which expressions can be used to find the area, in square centimeters, of the rectangle? Choose the two correct answers.

• 5x8

• 5x8

• 6x8

• 8x6

• 6+8

Tags

CCSS.3.MD.C.6

Which rectangles have an area of 12 square units? Select the two correct answers.

• 
• 
• 
• 
• 

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of a square with a side length of 6 units?

• 24 square units

• 12 square units

• 36 square units

• 30 square units

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Wendy wants to find the area of a playground. The playground has a blue section and a green section. Which expression shows the area of the playground?

• 
  (6×3)+(6×5)

• 
  (8×6)+(3×6)

• (6+3)×(6+5)
  

• 
  (8+6)×(3+6)

  
  

Tags

CCSS.3.MD.C.7D

One way to find the area of the rectangle is to multiply 5×9. Another way to find the area is to split the rectangle into parts and find the area of each part. Which pair of expressions can be used to find the area of each part of the rectangle?

• 5+3 and 5+6
  

• 3×6 and 5×3
  

• 5+3+5+3 and 5+6+5+6

• 
  5×3and 5×6

  
  

Tags

CCSS.3.MD.C.7D

Petra creates the rectangle shown from two smaller rectangles. Which expressions represent the total area, in square units, of the rectangle Petra creates?

Select the two correct answers

• (2×4)+(1×3)

• (2×4)+(2×3)

• (2+1)×(4+3)

• 
   2×(4+3) 

• 2+(4×3)

Tags

CCSS.3.MD.C.7D

Frida puts two rectangles together to make a new shape. Which sentence is true and tells the area of this new shape?

• 
  The area is 17 square centimeters because 7+10=17.

• The area is 42 square centimeters because 24+18=42.

• The area is 46 square centimeters because 28+18=46.

• The area is 58 square centimeters because 28+30=58.

Tags

CCSS.3.MD.C.7D

This shape is made of rectangles. The sides of the shape are measured in centimeters (cm). Which set of statements shows a way to find the area, in square centimeters, of the shape?

•  8×10=80 

   6×7=42 

   80−42=38 

  The area is 38 square centimeters.

• 7×6=42 

   2×8=16 

   42+16=58 

  The area is 58 square centimeters.

• 8×10=80 

   3×6=18 

   80−18=62 

  The area is 62 square centimeters.

•  7×8=56 

   2×10=20 

   56+20=76 

  The area is 76 square centimeters.

Tags

CCSS.3.MD.C.7D

This shape is made of rectangles. The sides of the shape are measured in feet (ft). Which expressions represent the area, in square feet, of the shape?

Select the two correct answers.

• (5×3)+(7×9)

• (6×2)+(9×5)

• (6×7)+(3×5)

• 
  (6×7)+(9×5)

• (6×9)+(5×7)

Tags

CCSS.3.MD.C.7D

What is the total area of the pink model?

• 3
• 4
• 7
• 12

Tags

CCSS.3.MD.C.6