The formation of ten thousand numbers.

The video tutorial introduces a competition where students design an infographic about the number of tourists visiting Egypt during Christmas, focusing on tourists from Russia, England, France, and the USA. The competition involves two missions: understanding place value and writing numbers in standard and expanded forms. The tutorial explains how to read large numbers and demonstrates adding numbers to form new place values, using a practical example on the board. The goal is to help students understand the concept of place value and the formation of new numbers through addition.

What is the greatest number formed from four digits according to the text?

Explain the process of adding one to the number 9,999 as described in the text.