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Numbers, units and arithmetic

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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.

By: The Open University

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Numbers, units and arithmetic

Introduction

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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 Mathematics & Statistics [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] .

The Open University is conducting a survey investigating how people use the free educational content on our OpenLearn website. The aim is to provide a better free learning experience for everyone. So if you have 10 minutes to spare, we’d be delighted if you could take part and tell us what you think

Please note this will take you out of OpenLearn, we suggest you open this in a new tab by right clicking on the link and choosing ‘Open Link in new Tab’.

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