Megafun Math Games And Puzzles For The Elementary Grades: Over 125 Activities That Teach Math Facts, Concepts, And Thinking Skills By Schiro, Michael S. By Thriftbooks
101 Math Puzzles, Riddles, And Brain Teasers For Kids (Ages 10+): The Ultimate Collection Of Ridiculously Fun Math Activities By Mashup Math By Thriftbooks
Megafun Math Games And Puzzles For The Elementary Grades: Over 125 Activities That Teach Math Facts, Concepts, And Thinking Skills By Schiro, Michael S. By Thriftbooks