Finding Area Counting Squares

Lilly wants to find the area of this piece of glass using gray square tiles. Each tile has the area of 1 square unit. Which models show a way that Lily could find the area of the piece of glass?

• 
• 
• 
• 

Tags

CCSS.3.MD.C.5A

Vince says the area of this shape is 4 square units. Is Vince correct? Choose the best explanation!

• Yes, Vince is correct because I count four gray rectangles, so the area is four square units

• Yes, Vince is correct because he used four squares to fill in his shape, so the area is four square units.

• No, Vince is wrong because he used more than four square units to fill his shape.

• No, Vince is wrong because he used rectangles and not squares to fill his shape.

Tags

CCSS.3.MD.C.5A

Select all strategies that could be used to find the area of this shape. (Hint: Select all means more than one)

• The area can be found by counting the number of squares that touch the edge of the shape

• The area can be found by adding 5x2, 4x2, and 2x2

• The area of the shape is 22 square units

• The area can be found by counting the number of grid squares inside the shape

Tags

CCSS.3.MD.C.5A

Select all the true statements about this shape (Hint: Select all means more than one)

• The area can be found by decomposing into rectangles

• The area cannot be found because there are too many measurements

• The area can be found by multiplying 60x30 and subtracting missing pieces

• The area can be found by adding all the side lengths together

Tags

CCSS.3.MD.C.7D

Select the statement that is true about all three figures

• The area of the first figure is greater than the others

• The areas are all equal

• The area of the middle figure is the smallest of the three

• We don't have enough information to compare the areas

Tags

CCSS.3.MD.C.5A

Jada said that she found the area of figure A by cutting it into 3 rectangles, finding their separate areas, and then adding those areas. Which strategy best describes what Jada did?

• decomposing and rearranging

• decomposing

• enclosing and subtracting

• counting grid squares

Diego said he can find the area of figure B by first multiplying 6x6. What should Diego's next step be?

• adding the area of 1 and 2

• subtracting the area of 1 and 2

• Nothing. His area is 36 square units

• decomposing and rearranging

Tags

CCSS.3.MD.C.7D

What is the area of figure C?

Find the area

• 430 in²

• 215 in²

• 41.5 in²

• 1.5 in²

Tags

CCSS.6.G.A.1

Find the area:

• 13 in²

• 20 in²

• 26 in²

• 40 in²

Tags

CCSS.6.G.A.1