Consider a number 45,00,00,000. Don’t you think it’s way too long to write or say? But what if we tell you a simpler way to write this? This number, mathematically, can be written as 4.5*10^8, and we read ‘10^8’ as ‘10 raised to the power 8’. But how does this form of expression come into …
A map is a miniature representation of a larger area. We use maps because we know that the actual geographical area won’t fit in. This means you reduce the size in such a way, that the proportions of the image are not disturbed. No wonder proportions play a key role in our day-to-day lives. Therefore, …
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 …
Can you tell us the difference between a rectangular drawing and a rectangular box? If you are thinking that both are one and the same, then you are wrong. A rectangular drawing is a 2D shape because it has two important factors – i.e the length and the breadth. Whereas a rectangular box is a …
Multiplication of Integers In the previous grade, we have already learned about Integers. In this chapter, we will add to that knowledge and advance our skills to carry out calculations with integers. Integers come with different properties that help us in their calculation. For instance – one of the properties of integers is – Closure …
You have drawn a square-shaped figure. Now, you are asked to divide that into four equal parts? How would you do it? It’s simple. You can divide the square into four equal parts by drawing two straight lines from the centre of two sides to the opposite side. But what if we ask you to …
You have 10 numbers ranging from 1 to 10, which are randomly arranged. These numbers make up your data. Now, if asked to find the smallest and the biggest number, you would simply arrange your data in an ascending order and provide your answer. This process is referred to as ‘Data Analysis’. Now to find …
Suppose you have to have Rs. 50/-, out of which you are told to keep Rs. 30/- to yourself. Excited, you go out to buy some chocolates. You know that your favourite chocolate costs Rs. 5 for each. And you need to buy 5 chocolates. What is the amount that you will get in return? …
Look closely at the minute and the hour hand of the wall clock. You will observe that both these hands make an angle between them. What is the angle? An angle in Geometry is a shape, formed by two lines or rays diverging from a common point. They help us to figure out the degree …
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