Level 3 PSLE
A roll of tape has smileys and hearts printed in a repeated pattern. Barbara cuts a piece of tape from the roll. In that piece, there are 129 smileys. Find the possible numbers of hearts on that piece of tape. Give your answer(s) in ascending order.
2 m
Level 3 PSLE
Study the pattern.
  1. Find the total number of white and grey triangles in Figure 100.
  2. Find the percentage of grey triangles in Figure 100. (Give the answer in decimals.)
4 m