Singapore Math Challenge will provide U.S. students with skill-building practice based on the leading math program in the world, Singapore Math! Singapore Math Challenge is the ideal solution, with problems, puzzles, and brainteasers that strengthen mathematical thinking.The Common Core State Standards adopted by most U.S. states cite Singapore math standards as worldwide benchmarks for excellence in mathematics. Common Core Standards accelerate math expectations for all students, creating a need for challenging supplementary math practice. Singapore Math Challenge is the ideal solution, with problems, puzzles, and brainteasers that strengthen mathematical thinking. Multiple problem-solving methods are taught through step-by-step examples, and an answer key provides a complete worked solution for each problem.