Mathematics with a Calculator Flashcards
6 cards from real CAEC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Mathematics with a Calculator flashcards as text
A car travels 480 km on 40 litres of fuel. What is the fuel efficiency in km/L?
Answer: 12 km/L
Fuel efficiency = 480 ÷ 40 = 12 km/L.
A jacket originally costs $180. It is on sale for 35% off. What is the sale price?
Answer: $117.00
Discount = 35% of $180 = $63. Sale price = $180 − $63 = $117.
What is the area of a rectangle with a length of 14 m and a width of 9 m?
Answer: 126 m²
Area of a rectangle = length × width = 14 × 9 = 126 m².
A store sells 3 items for $7.50. How much would 8 items cost?
Answer: $20.00
Cost per item = $7.50 ÷ 3 = $2.50. Cost of 8 items = 8 × $2.50 = $20.00.
A recipe requires 2.5 cups of flour per batch. How many cups of flour are needed for 4 batches?
Answer: 10 cups
Total flour = 2.5 × 4 = 10 cups.
A savings account earns 3% simple interest per year. If you deposit $2,000, how much interest will you earn after 2 years?
Answer: $120
Simple interest = Principal × Rate × Time = $2,000 × 0.03 × 2 = $120.