3rd Grade Review

Multiplication

100

5x8=40 what other two multiplications give off the same product?

4x10 & 2x20

200

What is the product of 8x6

48

300

What are three different multiplication  combinations that will give the product 24

2x12

3x8

4x6

400

What is 9x7

63

500

What is the opposite of multiplication? please show by using the number 36 

4x9=36

36/4=9

Area

100

What is the area of a square that has a side length of 5 cm

25 cm²

200

What is the area of a rectangle that is 7 inches wide and a length of 3 inches

21 inch²

300

What is the area of a shape composed of 2 rectangles glued together one  is 8x7 and the other was 4x8

56+32=88 square units

400

what is the area of a wall that is 9 feet wide and 4 feet high but has a door that is 3 feet wide by 5 feet high

9x4=36 feet²

3x5=15 feet²

36-15=21 feet²

500

What is the area of a bulletin board that is 5 meters wide and 3 meters high

15 meters²

Division

100

30/6

5

200

49/7

7

300

56/8

7

400

144/12

12

500

81/9

9