Multiplication
2 x 50 =
48 / 6 =
6 ft x 7 ft =
42 square feet
90
40 / 5 =
8
Bob paints a picture that is 9 feet long and 3 feet wide. What is the area of the picture?
27 square feet
60 square centimeters
_____ = 3 x 90
270
54 / 9 =
6
____ = 60 x 5
300
81 / 9 =
18 square centimeters
Both strategies result in the same area because skip counting by two's 5 times is equal to finding 2 x 5.
What is the area of a rectangle with sides of 7 feet and 4 feet?
28 square feet
120 / 12 =
10
To find the area of a rectangle with sides of 12 units and 3 units, I can multiply 12 x 3. I can use the break apart and distribute strategy to break apart 12 into 2 + 10. I can rewrite 12 x 3 as (2 x 10) x 3 which is (2 x 3) + (10 x 3).