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Mathematics: Number opposites

NUMBER OPPOSITES

In this module, you can study how to find the opposite (also called the additive inverse) of a number.

 

The two-minute video above from Khan Academy shows you how to find the opposite of a number, whether you start with a positive number or a negative number.

Did you know?

The opposite of a negative number is always a positive number.


Study and practice

HOW TO USE A BASIC CALCULATOR

The video explains how to use basic calculator functions and provides examples.

 

0.00 min      addition (+), subtraction (-), multiply (x), divide (÷)

1.19 min      decimal point
2.43 min      C, CE and backspace
4.19 min      square, square root & fractions
6.17 min      percentage (%)