Average a set of grades

What you'll build: the average of several test scores.

What you need: Nothing but this page.

Why this matters: AVERAGE is one of the most-used functions anywhere — and it introduces functions, which take inputs in parentheses.

Step 1 — Average three scores

=AVERAGE(80, 90, 100) // => 90

What just happened: AVERAGE(...) adds the numbers and divides by how many there are.

Step 2 — Add more scores

=AVERAGE(80, 90, 100, 70) // => 85

What just happened: functions take as many inputs as you give them, separated by commas.

Try changing…

• Your own scores. Add or remove numbers inside the parentheses.

You learned

• A function name is followed by ( inputs ).
• AVERAGE adds the inputs and divides by the count.

Next: Percentage change