PGE Topic 3.4 Arithmetic Operators

var sum = 9 + 5;

In the JavaScript statement shown, the "+" and "-" are known as

• Expressions.

• Operators.

• Operands.

• Variables.

var sum = 9 + 5;

In the JavaScript statement shown, the numbers "9 " and "5" are known as

• Expressions.

• Operators.

• Operands.

• Variables.

var sum = 9 + 5;

In the JavaScript statement shown, "var sum" is known as

• Expressions.

• Operators.

• Operands.

• Variables.

In JavaScript, the symbols +, –, =, >, and < are known as

• Maths

• Operands

• Operators

• Signs

What is the final value of x?

var x =10 / 2 + (6+4) * 2 – 5

• 20

• 25

• 30

• 35

What is the output of the following JavaScript expression?

1+2*(4%3)

• 1

• 2

• 3

• 4

What will be displayed after executing document.write("4" + "3");?

• 7

• 1

• 43

• "43"

What will be displayed after executing document.write("8" + 1);?

• 9

• 81

• "81"

• undefined

document.write(2+5+"8"); will give you

• 15

• 78

• 258

• NaN

What will be displayed after the following lines of JavaScript codes are executed?

var x = "17";

var y = 2;

document.write(y+x);

• 19

• 217

• 172

• undefined