Numerical Games for Smart Kids Book

Product description from producer

You won't need a notebook, paper, or pen to solve these puzzles and puzzles. Because you will do all the calculations mentally. Addition and subtraction, division and multiplication, sequence of numbers, exercises for attentiveness and memorization of numerical combinations are cool arithmetic puzzles that pump up your mathematical knowledge and train your memory.

At the top of each page there is a space for you to write down how much time you spent solving the problem. Don't be afraid to make mistakes - there are life-saving answers at the end of the book, and simple instructions are attached to each puzzle.