Math Riddles For Smart Kids: Brain Games For Kids: Challenging Math Riddles And Brain Teasers For Kids And Whole Family By Kits For Life By Thriftbooks
Brainteasers And Riddles For Gritty Kids: 300 Difficult Mindbending Lateral Thinking, Logic, And Math Puzzles For Kids And Families By Allbaugh, Dan By Thriftbooks
Math Riddle For Kids (Young Einstein's): Playful Learning Elevate Your Child's Math Skills With Brainteasing Fun! Kids And Families Will Love By Wand, Magic By Thriftbooks
Math Riddles For Smart Kids: Brain Games For Kids: Challenging Math Riddles And Brain Teasers For Kids And Whole Family By Kits For Life By Thriftbooks