Mathematics Specification A - 4MA1 PearsonEdexcel

Decimals

Overview

Decimals are the language of measurement. Every time you read a digital scale, compare prices or record a scientific result, you rely on decimal notation to express values that fall between whole numbers. Mastery of decimals feeds directly into percentages, standard form and calculator work across both Edexcel papers.

You will learn to read, write and order decimals, convert fluently between decimals, fractions and percentages, and understand why every terminating decimal can be written as a fraction. Higher tier students will also discover how to tame recurring decimals using algebra.

Objectives

  1. Use decimal notation
  2. Understand place value
  3. Order decimals
  4. Convert a decimal to a fraction or a percentage
  5. Recognise that a terminating decimal is a fraction
  6. [Higher] Convert recurring decimals into fractions

Lesson Note

A stopwatch reading of 10.83 seconds, a petrol price of 1.479 per litre, the thickness of a coin measured as 0.175 cm: decimal notation lets us pin down quantities more precisely than whole numbers ever could. The digits to the right of the decimal point represent tenths, hundredths, thousandths, and so on.

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Lesson Evaluation

Congratulations on completing the lesson on Decimals. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.

You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.

Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.

  1. What is 0.75 as a fraction in its simplest form? A) 75/10 B) 3/4 C) 7/5 D) 15/20 Answer: B
  2. Which decimal is the largest? A) 0.509 B) 0.59 C) 0.5 D) 0.519 Answer: B
  3. What is 0.6 as a percentage? A) 0.6% B) 6% C) 60% D) 600% Answer: C
  4. Which fraction gives a terminating decimal? A) 1/3 B) 2/7 C) 3/8 D) 5/6 Answer: C
  5. What is the value of the digit 4 in 0.0041? A) 4 tenths B) 4 hundredths C) 4 thousandths D) 4 ten-thousandths Answer: C

Available on the Green Bridge App

Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.

Full lesson notes with diagrams
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Available on Android, Windows, macOS, and Linux

Available on the Green Bridge App

Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.

Full lesson notes with diagrams
AI-powered learning assistant
Study offline, anytime, anywhere
Available on Android, Windows, macOS, and Linux

Practice Mock Questions

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