This Colorful Tray Puzzle Features Numbers 0-10 Plus Mathematical Signs And Names. Your Little One Will Get Familiar With Addition, Subtraction, Division, And Multiplication While Having Fun Matching The Symbols With The Words. They Will Also Develop Different Skill Sets To Prepare Them For School, Such As Hand-Eye Coordination And Problem Solving. Pictures Are Printed Under The Pieces To Guide Younger Children. This Puzzle Measures 15" X 11". Ages 3+ Years.