# What is Gross Income in Math? Definition and Examples

What is a gross income in math? A gross income is the total amount of money earned usually over the course of a year before taxes and others items are taken out as deductions.

Typically, your gross income will come from a job. However, it can also come from other sources such as the ones mentioned below:

• Self-employment
• Side jobs, such as driving for Uber or Lyft
• Freelancing
• Tips
• Royalties
• Alimony
• Gambling or lottery winnings
• Rental property income
• Making money on the internet

• Selling goods on Amazon or eBay
• And many others

## A couple of examples showing how to find the gross income in math

Example #1

Peter's yearly salary is \$40,000 working as a teacher. He also makes \$20,000 driving for Uber. What is Peter's gross income?

Peter's gross income  = \$40,000 + \$20,000 = \$60,000

Example #2

Maria's yearly salary is \$60,000 working as a nurse. She also receives \$35,000 in alimony from her ex-husband. Finally, she makes \$15000 selling goods on Amazon. What is Maria's gross income?

Maria's gross income  = \$60,000 + \$35,000 + 15000 = \$110,000