Puzzle Pythagorean Table

How to play?

Consider the multiplication table with the child.
Explain the principle of work. Show that the numbers of the left column are multiplied by numbers from the upper line, and the correct answer is at the place of their intersection. Find the result is very simple: you need to run a hand on the table.
Learn in small portions. Start training from the first 2-3 speakers, gradually move on to more numbers.
Tell us about the laws that will help to simplify memorization.

All examples of 5 end at 5 or 0: If the number is even, we attribute 0 to half the number, if odd, then 5.
When multiplying by 1, any number remains the same.
Examples of 5 half less than examples for 10 (10 × 5 = 50, and 5 × 5 = 25).
All examples of 10 end by 0, and begin with the number that we multiply.
To multiply by 4, you can simply double the number twice. For example, to multiply 6 × 4, you need to double 6 twice: 6 + 6 = 12, 12 + 12 = 24.

The size of the tablet: 27.5 × 27.5 cm.
Country manufacturer Russia
The composition is wood