Types of number
10 flashcards to master Types of number
Smart Spaced Repetition
Rate each card Hard, Okay, or Easy after flipping. Your progress is saved and cards are scheduled for optimal review intervals.
Define an integer and give three examples.
An integer is any whole number (not a fraction) that can be positive, negative, or zero.
What is a prime number? Give an example of a prime number between 20 and 30.
A prime number is a whole number greater than 1 that has only two factors: 1 and itself.
What is a square number? Give an example of the first 5 square numbers.
A square number is the result of multiplying an integer by itself.
Determine if 64 is a cube number. Explain your reasoning.
Yes, 64 is a cube number. This is because 4 x 4 x 4 = 64. It is the result of cubing the integer 4.
What are triangular numbers? Provide the first 4 triangular numbers.
Triangular numbers are formed by the sum of consecutive natural numbers.
Explain the difference between rational and irrational numbers. Provide an example of each.
A rational number can be expressed as a fraction p/q, where p and q are integers and q ≠ 0 (
What is the reciprocal of 5/3? Explain how to find the reciprocal of any number.
The reciprocal of 5/3 is 3/5. To find the reciprocal, invert the fraction (swap the numerator and denominator). For a whole number, place it over 1 first, then invert.
Find the Highest Common Factor (HCF) of 12 and 18.
The HCF of 12 and 18 is 6. Factors of 12 are: 1, 2, 3, 4, 6, 12 and factors of 18 are: 1, 2, 3, 6, 9, 18. The highest number present in both is 6.
What is the Lowest Common Multiple (LCM) of 4 and 6?
The LCM of 4 and 6 is 12. Multiples of 4 are: 4, 8, 12, 16,... and multiples of 6 are: 6, 12, 18,... The lowest number present in both lists is 12.
Express 24 as a product of its prime factors (prime factorization).
24 = 2 x 2 x 2 x 3, or 2³ x 3. We find this by successively dividing by prime numbers until we reach 1.
Key Questions: Types of number
Define an integer and give three examples.
An integer is any whole number (not a fraction) that can be positive, negative, or zero.
What is a prime number? Give an example of a prime number between 20 and 30.
A prime number is a whole number greater than 1 that has only two factors: 1 and itself.
What is a square number? Give an example of the first 5 square numbers.
A square number is the result of multiplying an integer by itself.
What are triangular numbers? Provide the first 4 triangular numbers.
Triangular numbers are formed by the sum of consecutive natural numbers.
Explain the difference between rational and irrational numbers. Provide an example of each.
A rational number can be expressed as a fraction p/q, where p and q are integers and q ≠ 0 (
About Types of number (1.1)
These 10 flashcards cover everything you need to know about Types of number for your Cambridge IGCSE Mathematics (0580) exam. Each card is designed based on the official syllabus requirements.
What You'll Learn
- 5 Definitions - Key terms and their precise meanings that examiners expect
- 1 Key Concepts - Core ideas and principles from the 0580 syllabus
How to Study Effectively
Use the Study Mode button above to test yourself one card at a time. Try to answer each question before flipping the card. Review cards you find difficult more frequently.
Continue Learning
After mastering Types of number, explore these related topics:
- 1.2 Fractions, decimals and percentages - 10 flashcards
Study Mode
Space to flip • ←→ to navigate • Esc to close
You're on a roll!
You've viewed 10 topics today
Create a free account to unlock unlimited access to all revision notes, flashcards, and study materials.
You're all set!
Enjoy unlimited access to all study materials.
Something went wrong. Please try again.
What you'll get:
- Unlimited revision notes & flashcards
- Track your study progress
- No spam, just study updates