Rakesh Kumar

                     What do you call water in arithmetic? Water (𝐻2𝑂) is made up of two atoms of hydrogen and one atom of oxygen, whereas hydrogen and oxygen are not made up of any other elements. In fact, there are 94 natural elements-arranged in a table called periodic table- which make up all matter in this universe. In periodic table, hydrogen is #1 and oxygen is #8.  Take number 6; which is made up of one atom of 2 and one atom of 3 i.e., 6=2 × 3. In contrast, 11 is not made up of any other element. The basic elements in arithmetic periodic table are 2,3,5,7,11,13,17,19,23,29, etc. These elements are called prime numbers and they make up all numbers in this universe.  For example, take number 12, it is made up of two atoms of 2 and one atom of 3 i.e., 12 = 2 × 2 × 3 . Furthermore, 12 can’t be broken down into any other smaller element; its composition is unique.  What do you call water in arithmetic?...

  The primary mathematics taught -from class 1 to 5-builds the ground which supports secondary mathematics, and is vital for students’ success in those years. When it is brought together and presented in one logical sequence, it becomes simpler and easier to understand; it avoids repetition, goes to the heart of the subject, and makes interconnections visible. This is the only book which covers five years of mathematics in one small volume and it will give you a perspective that is impossible to get anywhere else.   There are nine numbers-1 to 9- what this book begins with and gradually builds up to class 5 using simple language. It explains different number systems, basic operations, and their properties using number line, set, and algebra. It stresses fractions and decimals-the key topics- which form the adult world of numbers. It has 5 parts, 14 chapters, and 160 lessons; each part covers one major objective; each chapter begins with a map showing key ideas graphically; e...