Description

Login

Syncing account progress…

Back

Beginner · 8 min

Calculate a total

Use numeric values and arithmetic to calculate a shopping cost.

Work with numbers

Numbers do not need quotes. Use + to add, - to subtract, * to multiply, and / to divide. Parentheses can group calculations.

console.log(6 + 4);
console.log(3 * 5);
console.log(12 / 3);

Output

10
15
4

Convert numeric text

Number() converts a numeric string into a number. Adding two strings joins their text, so convert numeric input before calculating.

console.log("5" + "2");
console.log(Number("5") + Number("2"));

Output

52
7

Put it into practice

  1. Predict the output of each example before running it.
  2. Complete the coding task, then try the practice questions.

Try it yourself

Code runs on this device. When you are signed in, drafts sync to your account.

Calculate the total

Set total to the cost of 4 tickets priced at 7 each, using price and quantity. Display total.

Practice