from The Open University
Alternatively you can skip the navigation by pressing 'Enter'.
LifeTuesday, 3rd March 2015 21:00 - EdenDavid Attenborough's ten-part exploration of the enormous variety of life on planet Earth. Read more: OU on the BBC: Life
BBC Inside Science - Trends in forensicsAvailable until Tuesday, 24th March 2015 14:30BBC Inside Science asks where the future of forensics lies this week. Read more: OU on the BBC: BBC Inside Science - Trends in forensics
How Obamacare is reaching young invincibles through digital technologiesReaching the under-35s by using digital technologies is crucial to the success of the insurance... Read more: How Obamacare is reaching young invincibles through digital technologies
Take the photographic memory testCan you capture scenes just by looking at them? Find out with our photographic memory test. Launch now: Take the photographic memory test
Succeed with maths – Part 1 [TEST]DO NOT ATTEMPT TO COMPLETE THIS COURSE. IT IS ENTIRELY FOR OPENLEARN TESTING PURPOSES. Try: Succeed with maths – Part 1 [TEST] now
Succeed with maths – Part 1[BETA] If you feel that maths is a mystery that you want to unravel then this short 8-week course... Try: Succeed with maths – Part 1 now
Numbers, units and arithmetic
Do fractions and decimals make you apprehensive about maths? Do you lack confidence in...
Do fractions and decimals make you apprehensive about maths? Do you lack confidence in dealing with numbers? If so, then this unit is for you. The unit will explain the basics of working with positive and negative numbers and how to multiply and divide with fractions and decimals.
By the end of this unit 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
- 1.1 Introduction
- 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 Introduction
- 3.2 Arithmetic with whole numbers
- 3.3 Multiplying and dividing
- 3.4 Division
- 3.5 Order of calculations
- 3.6 Several calculations and using brackets
- 3.7 Arithmetic with decimals
- 3.11 More difficult fraction sums
- 3.12 Multiplication of fractions
- 3.14 More division with fractions
- 3.15 Mixed numbers
- 3.16 Arithmetic with negative numbers
- 3.17 Addition of negative numbers
- 3.18 Subtraction of negative numbers
- 4 OpenMark quiz
MU120_4M1: Numbers, units and arithmetic
This unit 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 unit is from our archive and is an adapted extract from Open mathematics (MU120) which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in.
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’re a regular user of OpenLearn and 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 in a new tab.
This is an extract 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 course units or view the range of currently available OU Mathematics Education courses.