Lindy paid $p for a plate which cost p cents. How much change did she receive? Give your answers in
  1. cents,
  2. dollars.
2 m
Hillary bought 12 buns and 15 doughnuts altogether. One bun is y ¢ and one doughnut is $2. She gave the cashier $50. Express her change in terms of y in cents.
2 m
Ann brought $z to the supermarket. She bought 2 watermelons at $2.50 each. How much money had she left? Give your answer in cents.
2 m
Benny swam for 3 days. On each day, he would do 2 more laps than the previous day. He did y number of laps on the first day. What was the total number of laps he did for the 3 days? Give your answer in terms of y.
2 m
A rope w cm long is cut into two pieces. One piece is 5 cm longer than the other. What is the length of the longer piece? Give your answer in terms of w.
2 m
Box X is half as heavy as Box Y. Box Z is 3 times as heavy as Boxes X and Y together. What is the mass of Box Z if Box Y is n kg?
2 m
Mrs Tan and her two children received $5k in the ratio 2 : 3. If her son received $100 more than her daughter, how much did her daughter receive? Leave your answer in terms of k.
2 m
James bought 4k crates of oranges. Each crate has 20 oranges. He gave away 55 oranges to his neighbour.
  1. How many oranges had he left?
  2. If he sold the rest at 40¢ each and k = 8, how much money did he receive from the oranges sold? Give your answer in dollars.
1 m
The side of an equilateral triangle is 24k cm long. Find its perimeter.
1 m
Find the area of the triangle.
1 m