Worksheet-12: Number System- Natural Numbers, Whole Numbers, Integers, Even & Odd, Prime & Composite

 

🟠 Worksheet: Number System Practice

Topics: Natural Numbers, Whole Numbers, Integers, Even & Odd, Prime & Composite, Factors & Multiples

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1️⃣ Natural Numbers (प्राकृतिक संख्याएँ)

Q1. Write the first 10 natural numbers.
Q2. What is the smallest natural number?
Q3. Is 0 a natural number? (Yes/No)

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2️⃣ Whole Numbers (पूर्ण संख्याएँ)

Q4. Write the first 10 whole numbers.
Q5. What is the smallest whole number?
Q6. Is every natural number a whole number? (Yes/No)

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3️⃣ Integers (पूर्णांक)

Q7. Write 5 positive and 5 negative integers.
Q8. Is 0 an integer?
Q9. Which is greater: –3 or –7?

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4️⃣ Even & Odd Numbers (सम और विषम संख्याएँ)

Q10. Write 5 even numbers between 1 and 20.
Q11. Write 5 odd numbers between 1 and 20.
Q12. Is 0 an even number?

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5️⃣ Prime & Composite Numbers (अभाज्य और संयोजित संख्याएँ)

Q13. List all prime numbers between 1 and 20.
Q14. Which is the smallest prime number?
Q15. Write two composite numbers between 10 and 20.

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6️⃣ Factors & Multiples (गुणक और गुणज)

Q16. Write all factors of 12.
Q17. Write the first 5 multiples of 7.
Q18. Find the common factors of 8 and 12.