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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, courses 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.
After studying this course you should be able to:
- write whole numbers and decimals in place-value columns and compare their sizes
- multiply and divide whole numbers and decimals by 10, 100, 1000 and so on
- indicate given fractions on a diagram and find equivalent fractions for a given fraction
- mark numbers on a number line
- choose appropriate units for a given purpose
- convert between different metric units and different time units
- perform, without a calculator, calculations involving: brackets, addition, subtraction, multiplication and division of whole numbers, decimals, simple fractions and negative numbers
- describe in words the arithmetic processes that you use.
- Current section: Introduction
- Learning outcomes
- 1 The size of numbers
- 1.2 Whole numbers
- 1.3 Using the place value
- 1.4 Number lines
- 1.5 Decimals
- 1.6 Decimals and place value
- 1.7 Fractions
- 1.8 Simplest form of a fraction
- 1.9 Negative numbers
- 2 Units of measurement
- 3 Arithmetic
- 3.1 Arithmetic with whole numbers
- 3.2 Multiplying and dividing
- 3.3 Division
- 3.4 Order of calculations
- 3.5 Several calculations and using brackets
- 3.6 Arithmetic with decimals
- 3.10 More difficult fraction sums
- 3.11 Multiplication of fractions
- 3.13 More division with fractions
- 3.14 Mixed numbers
- 3.15 Arithmetic with negative numbers
- 3.16 Addition of negative numbers
- 3.17 Subtraction of negative numbers
- 4 OpenMark quiz
- Keep on learning
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Numbers, units and arithmetic
This free course, Numbers, units and arithmetic, will help you to revise whole numbers, decimals and fractions, both positive and negative. You should know when and how to add, subtract, multiply and divide. Although you may have a calculator, you still need to do simple calculations in your head or on paper. Such calculations could be to estimate the size of an answer, as a check for your calculator work.
This OpenLearn course provides a sample of Level 1 study in.
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This free course includes adapted extracts from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Mathematics Education courses or view the range of currently available OU Mathematics Education courses.
Copyright & revisions
Originally published: Monday, 27th July 2015
Last updated on: Monday, 27th July 2015
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
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