NCERT 8th class Mathematics book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 Mathematics chapter wise NCERT solution for Mathematics for all the chapters can be downloaded from our website and myCBSEguide mobile app for free.
CBSE class 8th Mathematics have one books. Book has chapters and topics.
Here is the list of topics covered under each chapter of class 8 Mathematics NCERT text book.
You know that the area of a square = side × side (where ‘side’ means ‘the length of a side’). From the above table, can we enlist the square numbers between 1 and 100? Are there any natural square numbers upto 100 left out? You will find that the rest of the numbers are not square numbers.
Properties Of Square Numbers
Study the square numbers in the above table. What are the ending digits (that is, digits in the one’s place) of the square numbers? All these numbers end with 0, 1, 4, 5, 6 or 9 at unit’s place. None of these end with 2, 3, 7 or 8 at unit’s place.
Some More Interesting Patterns
1.1. Adding triangular numbers. Do you remember triangular numbers (numbers whose dot patterns can be arranged as triangles)?
2. Numbers between square numbers Let us now see if we can find some interesting pattern between two consecutive square numbers.
3. Adding odd numbers
So we can say that the sum of first n odd natural numbers is n2. Looking at it in a different way, we can say: ‘If the number is a square number, it has to be the sum of successive odd numbers starting from 1.
4. A sum of consecutive natural numbers
Finding The Square Of A Number
Squares of small numbers like 3, 4, 5, 6, 7, ... etc. are easy to find. But can we find the square of 23 so quickly? The answer is not so easy and we may need to multiply 23 by 23. There is a way to find this without having to multiply 23 × 23.
Study the following situations. (a) Area of a square is 144 cm2. What could be the side of the square? Finding square roots, The inverse (opposite) operation of addition is subtraction and the inverse operation of multiplication is division. Similarly, finding the square root is the inverse operation of squaring.
NCERT Solutions Class 8 Mathematics PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 8 Mathematics includes text book solutions. NCERT Solutions for CBSE Class 8 Mathematics have total 16 chapters. Class 8 Mathematics ncert Solutions in pdf for free Download are given in this website. Ncert Mathematics class 8 solutions PDF and Mathematics ncert class 8 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.
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