In this chapter, you learned how to use some simple math operations to add and average two salaries. In the next chapter, you will learn how to interact with users by collecting information from a text box in the web page.
![country flag](/images/countries/us.png)
![country flag](/images/countries/gb.png)
![country flag](/images/countries/india.png)
![country flag](/images/countries/germany.png)
![country flag](/images/countries/france.png)
![country flag](/images/countries/canada.png)
![country flag](/images/countries/russia.png)
![country flag](/images/countries/spain.png)
![country flag](/images/countries/brazil.png)
![country flag](/images/countries/australia.png)
![country flag](/images/countries/singapore.png)
![country flag](/images/countries/hungary.png)
![country flag](/images/countries/ukraine.png)
![country flag](/images/countries/lux.png)
![country flag](/images/countries/estonia.png)
![country flag](/images/countries/lithuania.png)
![country flag](/images/countries/southkorea.png)
![country flag](/images/countries/turkey.png)
![country flag](/images/countries/switzerland.png)
![country flag](/images/countries/colombia.png)
![country flag](/images/countries/taiwan.png)
![country flag](/images/countries/chile.png)
![country flag](/images/countries/norway.png)
![country flag](/images/countries/ecuador.png)
![country flag](/images/countries/indonesia.png)
![country flag](/images/countries/newzealand.png)
![country flag](/images/countries/cyprus.png)
![country flag](/images/countries/denmark.png)
![country flag](/images/countries/finland.png)
![country flag](/images/countries/poland.png)
![country flag](/images/countries/malta.png)
![country flag](/images/countries/czech.png)
![country flag](/images/countries/austria.png)
![country flag](/images/countries/sweden.png)
![country flag](/images/countries/italy.png)
![country flag](/images/countries/egypt.png)
![country flag](/images/countries/belgium.png)
![country flag](/images/countries/portugal.png)
![country flag](/images/countries/slovenia.png)
![country flag](/images/countries/ireland.png)
![country flag](/images/countries/romania.png)
![country flag](/images/countries/greece.png)
![country flag](/images/countries/argentina.png)
![country flag](/images/countries/netherlands.png)
![country flag](https://cdn.packtpub.com/flag/004da5c4-583f-4e69-a0a8-0e999f350f90_128px-Flag_of_Bulgaria.png)
![country flag](/images/countries/latvia.png)
![country flag](/images/countries/southafrica.png)
![country flag](/images/countries/malaysia.png)
![country flag](/images/countries/japan.png)
![country flag](/images/countries/slovakia.png)
![country flag](/images/countries/philippines.png)
![country flag](/images/countries/mexico.png)
![country flag](/images/countries/thailand.png)
In this chapter, you learned how to use some simple math operations to add and average two salaries. In the next chapter, you will learn how to interact with users by collecting information from a text box in the web page.