Class 9 Exam > Class 9 Videos > L10 : Operations on real number - Number System, Maths, Class 9
L10 : Operations on real number - Number System, Maths, Class 9 Video Lecture
FAQs on L10 : Operations on real number - Number System, Maths, Class 9 Video Lecture
| 1. What is the number system? |  |
Ans. The number system is a way of representing numbers using a set of symbols or digits. It helps us to count, measure, and perform various mathematical operations on numbers.
| 2. What are real numbers? | |
Ans. Real numbers are the set of all rational and irrational numbers. They include numbers like integers, fractions, decimals, and square roots. Real numbers can be positive, negative, or zero.
| 3. How do we perform operations on real numbers? | |
Ans. The four basic operations on real numbers are addition, subtraction, multiplication, and division. Addition is combining two or more numbers, subtraction is taking away one number from another, multiplication is repeated addition, and division is splitting a number into equal parts.
| 4. What is the importance of operations on real numbers? | |
Ans. Operations on real numbers are fundamental in mathematics and in our daily lives. They allow us to solve problems, calculate measurements, analyze data, and perform various mathematical computations.
| 5. Can you give examples of operations on real numbers? | |
Ans. Sure! Here are some examples:
- Addition: 3 + 5 = 8
- Subtraction: 10 - 4 = 6
- Multiplication: 2 x 6 = 12
- Division: 15 ÷ 3 = 5
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