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