Can you answer the following questions: How big is the surface of your house? Or how big is our country? In order to understand the surface that is occupied by a specific item, it becomes necessary to find its area. An area of an item is the size of the surface that it has occupied. …
How would you find an answer for the following given problem: 99 + _____ = 130. In Algebra, we make use of an ‘Algebraic Expression’, while solving these types of question. In this case, we may take the blank value as ‘X’ or any letter of your choice. An algebraic expression helps us to complete …
Read this story carefully. Once upon a time, a king was very happy with the inventor of Chess and asked him to demand anything in return. The inventor humbly said, just place a single grain of rice in the first square of the chessboard. Then two grains on the second square, four grains on the …
Open a notebook, and carefully observe the right-hand side and the left-hand side of it. You will observe that both parts are exactly the same. We can say they are symmetrical. Now there is a dividing line between the left side and the right side, that’s called the axis of symmetry. If you observe carefully …
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? …
Division of smaller numbers is comparatively easy, but when it comes to bigger numbers like 982356 and 1987632, finding the solution takes a lot of time. To increase our pace of calculation with bigger numbers, we must learn some tips and tricks. Curious enough to know about them? What if we tell you that any …
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