500 Math Crossword Puzzles for Kids, Level 4

500 cross-number puzzles that bring mixed numbers and fractions to all four operations, for Grades 5–6 (ages 10–12). A single puzzle blends whole numbers, proper fractions, and mixed numbers like 1 1/2 and 2 1/3 — added, subtracted, multiplied, and divided — with friendly denominators that keep it mental math, no calculator. Every puzzle has a QR code — and a searchable ID — to solve and self-check online for free, no app needed. Large-print, 4 puzzles per page, with a complete answer key.