What is the sum of the numbers of the two factors? What are the characteristics of the numbers on the rest of you?

The sum of the digits in the two factors is 10, and the other digits are the same.

Question 2:

According to the calculation, I guess Bing gives an example to verify the operation method of multiplying two numbers that meet the above characteristics.

56x 54 = 5x(5+ 1)x 100+4x 6 = 3024

247 x243 = 24x(24+ 1)x 100+7x 3 = 6002 1