Find the product of 5q and 9r.
1 m
Lina bought 5 plates and 8 bowls. One plate is $3b each and 1 bowl is $2n each. How much did she pay for them?
2 m
Find the value of 5a - 9b2 + 3c when a = 10, b = 2 and c = 12.
2 m
PSLE
Andy had 1.4 m of wire. He used some of it to make the figure as shown.
  1. How much of the wire did Andy use to make the figure? Leave your answer in the simplest form in terms of x.
  2. If x = 15, how much of the wire was not used to make the figure? Leave your answer in metres.
2 m
Gary weighs x kg while Jim weighs 2y kg.
  1. Find the average mass of each boy in terms of x and y.
  2. If x = 47 and y = 19, find the average mass of each boy.
2 m