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The Open University

Numbers, units and arithmetic

The Open University via OpenLearn

Overview

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Do fractions and decimals make you apprehensive about maths? Do you lack confidence in dealing with numbers? If so, then this free course, Numbers, units and arithmetic, is for you. The course will explain the basics of working with positive and negative numbers and how to multiply and divide with fractions and decimals.

Syllabus

  • Introduction
  • Learning outcomes
  • 1 The size of numbers
  • 1 The size of numbers
  • 1.1 Whole numbers
  • 1.2.1 Try some yourself
  • 1.2 Using the place value
  • 1.3.1 Try some yourself
  • 1.3 Number lines
  • 1.4 Decimals
  • 1.4.1 Try some yourself
  • 1.5 Decimals and place value
  • Try some yourself
  • 1.6 Fractions
  • 1.6.1 Try some yourself
  • 1.7 Simplest form of a fraction
  • Try some yourself
  • 1.8 Negative numbers
  • Try some yourself
  • 1.9 Negative number notation
  • Try some yourself
  • 2 Units of measurement
  • 2 Units of measurement
  • 2.1 Which units to use
  • 2.1.1 Units in action
  • Try some yourself
  • 2.2 Converting units
  • 2.2.1 Try some yourself
  • 2.3 Measuring mass
  • 2.4 Measuring length
  • 2.5 Measuring capacity
  • 2.6 Comparing measurements
  • Try some yourself
  • 3 Arithmetic
  • 3 Arithmetic
  • 3.1 Arithmetic with whole numbers
  • Try some yourself
  • 3.2 Multiplying and dividing
  • Try some yourself
  • 3.3 Division
  • Try some yourself
  • 3.4 Order of calculations
  • Try some yourself
  • 3.5 Several calculations and using brackets
  • Try some yourself
  • 3.5.1 With or without brackets
  • Try some yourself
  • 3.6 Arithmetic with decimals
  • 3.6.1 Addition and subtraction with decimals
  • Try some yourself
  • 3.7 Multiplying and dividing with decimals
  • Try some yourself
  • 3.8 Order of decimal calculations
  • Try some yourself
  • 3.9 Addition and subtraction with fractions
  • Try some yourself
  • 3.10 More difficult fraction sums
  • Try some yourself
  • 3.11 Multiplication of fractions
  • Try some yourself
  • 3.12 Division by fractions
  • Try some yourself
  • 3.13 More division with fractions
  • Try some yourself
  • 3.14 Mixed numbers
  • Try some yourself
  • 3.15 Arithmetic with negative numbers
  • Addition on the number line
  • Subtraction on the number line
  • 3.16 Addition of negative numbers
  • Try some yourself
  • 3.17 Subtraction of negative numbers
  • Try some yourself
  • 3.18 Practical examples of negative numbers
  • Try some yourself
  • 3.19 Multiplication with negative numbers
  • 3.20 Multiplication rules
  • Try some yourself
  • 3.21 Division rules
  • Try some yourself
  • 4 OpenMark quiz
  • 4 OpenMark quiz
  • Conclusion
  • Acknowledgements

Reviews

4.5 rating at OpenLearn based on 40 ratings

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