Real Numbers Practice 1: Prime Factorisation And FTA

Practise focused skills from Real Numbers

MathematicsGrade 10Mixed10 questions20 min

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Focus question style

Section A: Concept Check · 5 questionsSection B: Reason and Apply · 5 questions

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Section A: Concept Check

Build and apply the key ideas for this part of the chapter.

Choose the best answer for each question.

Question 1

EasyQuestion

Which of these numbers is neither prime nor composite?

Topic: Prime Factorisation · Skill: Identify prime and composite numbers

Question 2

EasyQuestion

A student says $91$ is prime because it is odd. What is the best response?

Topic: Prime Factorisation · Skill: Identify prime and composite numbers

Question 3

MediumQuestion

What is the prime factorisation of $360$ ?

Topic: Prime Factorisation · Skill: Express numbers as product of primes

Question 4

MediumQuestion

A shopkeeper packs $420$ pencils into equal bundles using prime-factor groups. Which expression correctly shows $420$ as a product of primes?

Topic: Prime Factorisation · Skill: Express numbers as product of primes

Question 5

MediumQuestion

Which statement best represents the Fundamental Theorem of Arithmetic?

Topic: Fundamental Theorem of Arithmetic · Skill: State the Fundamental Theorem of Arithmetic

What this assignment covers

Classify numbers, write prime factorisations, and use the Fundamental Theorem of Arithmetic in reasoning contexts.

Skills and sections

Identify prime and composite numbers, Express numbers as product of primes, State the Fundamental Theorem of Arithmetic, Use prime factorisation to compare numbers, Connect FTA to real-life counting contexts

Section A: Concept Check: 5 questions
Section B: Reason and Apply: 5 questions