Question

Area 3. A picture 15 cm by 9 cm is framed on a piece of cardboard 18 m by 13 cm. What area of the cardboard can be seen? Area = ​

Answer 1

99

Explanation:

15x9=135

135 cm

18x13=234

234 cm

234-135=99

=99

Answer 2

Area = 99cm^2

Explanation:

Seen cardboard = Total cardboard - picture

Total cardboard = 18 * 13

Total cardboard = 234

Picture = 15 * 9

Picture = 135

Seen cardboard = 234 - 135

Seen cardboard = 99