Nexamind Education
Cambridge Lower Secondary Mathematics · Stage 7

Unit 4 · Decimals

A complete, self-contained course for Unit 1: teaching slides, native-speaker video lessons, summaries, 343 self-marking practice questions with full worked solutions, maths-vocabulary practice, and a printable end-of-unit test.

5 sections 5 teacher decks 343 questions 12 verified videos 19 printable PDFs Works offline

How to use this site

1Watch or read the theory. Every section opens with a slide deck. Use the ← and → arrow keys to move through it.
2Check the key words. Cambridge exam questions use precise language — learn it early, then test yourself on the vocabulary page.
3Work through the practice in order. Each section has four sets that get harder: A FluencyB ReasoningC ChallengeD Word problems.
4Mark as you go. Press Enter in any answer box, or use Check this set. Show worked answers reveals the full method, not just the answer.
5Print what you need. Every section has a worksheet PDF and a separate worked-answers PDF on the downloads page.
6Finish with the test. 23 questions, 37 marks, no calculator.

The five sections

Section 4.1

Ordering decimals

Compare and order decimal numbers.

6 slides 56 questions 3 videos
Section 4.2

Adding and subtracting decimals

Add and subtract decimals, mentally and with a written method.

6 slides 56 questions 3 videos
Section 4.3

Multiplying decimals

Multiply decimals by whole numbers, and by other decimals.

6 slides 56 questions 2 videos
Section 4.4

Dividing decimals

Divide decimals by whole numbers, rounding the answer to a given degree of accuracy where necessary.

6 slides 56 questions 2 videos
Section 4.5

Making decimal calculations easier

Simplify calculations containing decimals using place value, equivalent fractions and the order of operations.

6 slides 56 questions 2 videos
For teachers

Presentation decks

5 standalone full-screen decks for the projector, with step-by-step reveal, embedded video, interactive tools, quick checks and speaker notes.

30 slides1 file each
Language

Maths vocabulary

Unscramble, gap-fill, choose-the-reason and definition matching — plus a full glossary of every term in Unit 1.

40 questions16 terms
Watch

Video lessons

Hand-picked lessons from Corbettmaths, Math Antics, Math with Mr. J, Khan Academy and Mathsaurus. Every link verified.

12 videosBritish & American
Assess

End-of-unit 4 test

Written in the Cambridge end-of-unit style, with marks shown for each question and a full mark scheme.

23 questions37 marks
Revise

One-page revision sheet

Every rule, key word and worked example from all six sections on a single page. Print it and stick it on the wall.

Print

Downloads

19 PDFs: slide handouts, worksheets, worked answers, the glossary, the revision sheet, the test and its mark scheme.