What if we ask you to find numbers, which when added gives us 29, and 100 when multiplied? Seems difficult? How do any numbers add up to 29 and at the same time be equal to 100 when multiplied? Now, wait for it. Take the numbers 25 and 4. When we add these numbers, we …
Collection of data is done on a large scale. All the collected data is depicted in the simplest form, such that, the information can be understood quickly just by taking a glance at it. What do you think this simplest form of representing data can be? Here comes ‘Statistics’ into the picture! It is a …
Who doesn’t hate division of numbers? The decimals are unending. The numbers keep on increasing. Everything goes southwards if we miss a single point in between the steps. But what if we tell you there is a trick to make things simple? What if we tell you that you can identify which numbers can be …
We have learned and studied different types of numbers in our previous grades. They are natural numbers (starting from 1), whole numbers (starting from 0), integers (the combination of positive and negative numbers). In this chapter, we will study the Rational Numbers. Rational Numbers as we know are any numbers expressed in fraction, i.e in …
What do we mean by an equation? An expression is said to be an ‘equation’, when there is the left side and the right side, with the ‘equality’ sign in the centre. On the other hand, when an equation contains only a single variable, with the highest power of one, it is said to be …
What do you think a notebook, a matchbox and a mobile phone have in common? All these figures have four sides, and any structure with four sides is termed as ‘Quadrilateral’. The word itself gives us an idea of its meaning as the word ‘Quadri’ stands for ‘Four’ and the word ‘Lateral’ stands for ‘Sides’. …
In the previous chapter, we got introduced to the world of “Quadrilaterals”. Square, rectangle, rhombus are a few examples in this category. What if we tell you that you can construct a quadrilateral on your own? Wondering how? Well, some tools help you construct a quadrilateral. These tools not only help you build the entire …
Have you observed your mark-sheet carefully? In that, you will find all the records of your marks scored in the entire academics arranged in rows and columns. The mark-sheet contains information in the form of a ‘Data’. Many a time, we need to organise the data systematically, to draw meaningful interferences from any data. Wondering …
What do we get when we multiply 2 with 2? The answer is 4. What do we get if we multiply 7 with 7? The answer is 49. Now, what do we get if we multiply 5 with 5? We would get 25. That’s true for all of us. Now closely observe the equations that …
What comes to your mind when you see the number – 1729? Is it just an ordinary number like the rest? Not at all! There is a very intriguing story behind this number. The number is the famously called “Hardy-Ramanujan number”, among mathematicians. It is the smallest number which is a sum of two cubes …
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