1.1.2

The Four Rules for Positive Numbers

Test yourself

The Four Rules for Positive Numbers

You should be able to calculate the sum, difference, product, and quotient of numbers without using a calculator.

Illustrative background for Calculating the sumIllustrative background for Calculating the sum ?? "content

Calculating the sum

  • Calculating the sum means adding two numbers together.
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Calculating the sum of several numbers

  • You can also calculate the sum of more than two numbers.
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Calculating the difference

  • Calculating the difference means subtracting one number from another.
    • E.g. 4 - 2 = 2
  • You may have noticed that the sum and difference are reverse functions of each other.
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Calculating the product

  • Calculating the product means multiplying two numbers together.
    • E.g. 3 x 3 = 9
  • To understand multiplication you need to have a good understanding of times tables.
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Calculating the quotient

  • Calculating the quotient means dividing one number by another number.
    • E.g. 9 รท 3 = 3
  • You may have noticed that the product and quotient are reverse functions of each other.

Jump to other topics

1Proof

2Algebra & Functions

2.1Powers & Roots

2.2Quadratic Equations

2.3Inequalities

2.4Polynomials

2.5Graphs

2.6Functions

2.7Transformation of Graphs

2.8Partial Fractions (A2 Only)

3Coordinate Geometry

4Sequences & Series

5Trigonometry

6Exponentials & Logarithms

7Differentiation

8Integration

9Numerical Methods

10Vectors

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