Math Problem of the Week - Middle School - Apr. 17, 2022 to Apr. 23, 2022

Apr 21, 2022 | West Covina

 

Middle School: 

Question: Lily is making labels for the plants in her garden. Each label is made of a white 3" x 5" laminated against a colorful 5" x 8" card. What is the area of the front of each label that isn't covered by the white card?

 

 

 

 

Answer:  25 square inches

 

 

Solution:  First, we need to find the area of the larger card. That’s 5 × 8 = 40 square inches. Next, we subtract the part that’s covered by the white card, which is 3 × 5 = 15 square inches. Then we subtract the area of the small card from the larger card, which gives us 40 - 15 = 25 square inches.