A boy staring at ants suddenly thinks of a fun but difficult Maths problem. How long will it take the ants to fall off the stick he's looking at, if they keep bumping into each other and changing directions? Does this sound impossible to solve? It isn't! Read on to find out the boy's ingenious solution!The I'm a Maths Star! series comprises challenging Maths puzzles, presented in story form. Puzzles are described and then solved, step-by-step, through an engaging storyline, and using various Maths heuristic techniques that are also taught as part of the world renowned Singapore Maths curriculum. Through illustrations and an engaging storyline, children will learn Maths heuristics, and be inspired to persevere in understanding, representing, and solving fun and intriguing Maths problems!Includes a Guide to Problem-solving by Yeap Ban Har!