Area Concepts

Answer Key - Grade 3 Math Worksheet - Challenge Me

Circle the answer, or write the answer on the line.

1. 1.

   This square floor is covered with unit tiles. What is its area?

   • 81 square units
   • 18 square units
   • 36 square units
   • 32 square units
2. 2.

   Which has the greater area: a 6 by 4 rectangle or a 5 by 5 square?

   • They have the same area
   • The square, by 1 square unit
   • The rectangle, by 2 square units
   • The rectangle, by 1 square unit
3. 3.

   This picture shows one part of an L-shaped rug. The other part is a 2 by 4 rectangle. What is the area of the whole rug?

   • 18 square units
   • 24 square units
   • 26 square units
   • 15 square units
4. 4.

   A rectangle has an area of 36 square units. One side is 4 units long. How long is the other side?

   • 9 units
   • 8 units
   • 32 units
   • 18 units
5. 5.

   How many unit squares cover this rectangle?

   60
6. 6.

   A rug covers 42 square feet. It is 7 feet long. How many feet wide is it?

   6
7. 7.

   Each square is 1 square meter. A rug covers this whole grid except the bottom row. What area does the rug cover?

   • 36 square meters
   • 44 square meters
   • 40 square meters
   • 45 square meters
8. 8.

   A garden is made of two rectangles that do not overlap. One part is 4 by 3. The other part is 2 by 5. What is the total area?

   • 12 square units
   • 14 square units
   • 20 square units
   • 22 square units
9. 9.

   Jo tiles an 8 by 4 rectangle. She counts only the squares around the edge. What does she count, and what is the true area?

   • She counts 12; the area is 32
   • She counts 20; the area is 24
   • She counts 24; the area is 32
   • She counts 20; the area is 32
10. 10.

    Which rectangle has the same area as this one, but a different shape?

    • 4 by 4
    • 2 by 9
    • 3 by 5
    • 3 by 7