Level 3
Lily wants to buy 20 identical pens as shown:
1 for $4.50
6 for $23
What is the least amount of money she needs to buy 20 such pens?
3 m
Level 3
The advertisement shows a sale in chocolates. Pamela needs 10 boxes of such chocolates as gifts for her classmates. What is the least amount she has to pay if she buys them during the sale?
3 m
Level 3
The stationery shop has a special offer for punchers:
1 puncher for $1.10
3 punchers for $3


Neave wants to buy 10 punchers. What is the least amount he has to pay?
3 m
Level 3
A shop had a promotion on chips. Each packet of chips was sold for $2.80. 5 packets of chips were sold for $13.30. Neave wanted to buy 14 packets of chips for his class party. What was the least amount of money he had to pay?
3 m
Level 3
Esther spent $49.60 on muffins which costs $3.10 each. For every 3 muffins bought, she received one free muffin. How many muffins did she buy altogether?
3 m
Level 3
Brian wanted to cut small identical 3 cm by 2 cm rectangles from a rectangular cardboard measuring 26 cm by 18 cm. What is the maximum number of complete small rectangles Brian could cut? (Note: Brian could rotate the small rectangle.)
3 m
Level 3
What is the maximum number of rectangles each measuring 3 cm by 2 cm that can be cut from a cardboard measuring 48 cm by 22 cm?
3 m
Level 3
The diagrams show a rectangular cardboard X and a square Y.
Abel cut as many squares Y as he could from rectangular cardboard X.
The remaining part of the rectangular cardboard X is shown in Figure 1.
  1. What is the length of AB as shown in Figure 1?
  2. What is the greatest number of squares Y that Abe could cut from a rectangular cardboard X?
3 m
Level 3
What is the maximum number of squares of side 4 cm that can be cut from a rectangle measuring 81 cm by 74 cm?
3 m
Level 3
Adrian wants to cut some 3-cm squares from a piece of rectangular paper shown. What is the greatest number of squares he can cut out?
3 m