Assess students' ability to select, apply, and justify the most effective strategy for solving complex multi-step fraction word problems for grades 3–5. Problems will include mixed numbers, whole-number multiplication, conversions between mixed and improper fractions, and reasoning with common denominators and estimation. Students must solve, compare methods (e.g., conversion, visual/bar models, unit-fraction reasoning), analyze errors, and write a clear justification for their chosen strategy focusing on efficiency and accuracy.