Rockridge Press Do the Math!: Challenging, Fun Math Puzzles for Kids

Do the Math!: Challenging, Fun Math Puzzles for Kids

Perfectly Logical!: Challenging Fun Brain Teasers and Logic Puzzles for Smart Kids

Another Logic Workbook for Gritty Kids: Spatial Reasoning, Math Puzzles, Word Games, Logic Problems, Focus Activities, Two-Player Games. (Develop ... & STEM Skills in Kids Ages 8, 9, 10, 11, 12.)