Math Expressions: familiar operators

Question 1

Enter the operators, in this order, for addition, subtraction, multiplication, and division. Don’t type spaces between them.

Answer 1

+-*/

Question 2

What is the name of the arithmetic operator that gives you the remainder when one number is divided by another? (one word)

Answer 2

modulus

Question 3

Type the modulus operator.

Answer 3

%

Question 4

What is the value of num?
var num = 20 % 6;

Answer 4

2

Question 5

In a single statement, declare the variable largeNum and assign it the result of 1,000 multiplied by 2,000.

Answer 5

var largeNum = 1000 * 2000;

Question 6

Assign to the variable num the result of dividing 9 by the value represented by the variable qty. The variable num hasn’t been declared beforehand.

Answer 6

var num = 9 / qty;

Question 7

Assign to a variable the result of adding a number to itself, for example 2 + 2. The variable hasn’t been declared beforehand. Make up the variable name.

Answer 7

var doubledNum = 12 + 12;

Question 8

Code an alert that displays the result of any mathematical operation on 2 variables. Make up the variable names.

Answer 8

alert(price * qty);

Question 9

Assign to a variable the remainder when one number is divided by another. The variable hasn’t been declared beforehand. Make up the variable name.

Answer 9

var leftOver = 10 % 3;

Question 10

Assign to a variable the remainder when the value represented by a variable is divided by a number. The first variable has been declared beforehand. Make up the variable names.

Answer 10

leftOver = num % 3;