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FAQs

Chapter – 1 Real number

**The Simplest Way to Learn Real numbers!**

**What is the real number?**

• Real number is a value that represents a quantity along a line.

• Real number consists of all rational and irrational numbers.

• The sub sets of real numbers are:

1. Natural number

2. Whole number

3. Integers

§ Natural number - The set of counting numbers, which is also a subset of real no. (N= 1, 2, 3, 4)

§ Whole number - The set of natural numbers including zero. (W=0, 1, 2, 3, 4)

§ Integers - The set of natural numbers, their negatives and zero. (Z=-2, -1, 0, 1, 2)

The ScoreX^{TM} offers the study material inclusive of solutions for **CBSE class 10 maths chapter 1** to attain the complete knowledge of the chapter.

**What is the format of the course?**

Our course of **CBSE class 10 math chapter 1** is designed to make the concepts simpler to learn and cover all the main topics. Some are:-

**Euclid’s Division Lemma**

If we have two positive integers a and b, then there exist unique integers q and r which satisfies the condition a=bq + r where 0

Now, to calculate the Highest Common Factor (HCF) of two positive integers a and b, we use Euclid’s division algorithm.

**Rational Numbers **

The rational number is also known as a ratio. That means it can be written as a fraction, for example, 456/100= 4.56, 64/8=8

**Irrational Numbers**

All numbers that are not rational are considered irrational numbers. Irrational numbers are non-repeating digits that don’t end to the right of the decimal point. For example:-

2.55 is irrational number

400 is not an irrational number

If you want to practice and become confident on the topic, get the course now for desired results.