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Variables
Arithmetic Operators

Computers are incredible at doing calculations. Now that we have declared variables, let’s use them with arithmetic operators to calculate things!

Here are some arithmetic operators:

  • + addition
  • - subtraction
  • * multiplication
  • / division
  • % modulo (divides and gives the remainder)

For example:

var score = 0 // score is 0 score = 4 + 2 // it is now 6 score = score - 2 // it is now 4 score = 4 * 2 // it is now 8 score = 4 / 2 // and now 2 score = 5 % 2 // and now 1

Note: The order of operations can be specified using parentheses. For example, the use of parentheses in score = 4 * (2 + 1) sets score equal to 4 * 3 rather than 8 + 1.

Instructions

1.

In the code editor, we have already declared and initialized a variable called amount.

Declare a new variable named tip and give it the value of amount multiplied by 0.2.

2.

Now print out tip.

How much is the tip?

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