Description:Singapore Math Challenge: Word Problems for fourth grade and up features 352 pages of tools and practice needed for a strong mathematical foundation. Used with grade level standards, this guided resource teaches through challenging word problems to build students' skills in substitution, time, area, perimeter, fractions, and more. Singapore Math creates a deep understanding of each key math concept, is a direct complement to the current textbooks used in Singapore, includes an introduction explaining the Singapore Math method, and includes step-by-step solutions in the answer key.