Level 3
Mr Chen used some identical rectangular tiles and black square tiles to decorate part of a floor as shown. The length of each tile is 34.5 cm.
  1. Find the width of each tile.
  2. Find the total area of the shaded regions.
5 m
Level 3
Jennifer draws 5 different squares. How many sides does she draw in all?
4 m
Level 3
Serena had 134 round and square shaped cookies. After giving away 13 of her round shaped cookies and 14 of her square shaped cookies, she had an equal number of round and square shaped cookies. How many square shaped cookies did she have at first?
4 m