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NCERT 5th Class (CBSE) Mathematics: Introduction To Algebra

Mathematics

We know that a mathematical expression uses mathematical symbols instead of words. For example, the words ‘twenty-eight increased by five’, will be shown as the mathematical expression 28 + 5. Can you give the mathematical expressions for these words? Seventy three minus forty -two Twelve less two Six times fifteen ...

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NCERT 5th Class (CBSE) Mathematics: Area And Volume

Mathematics

This stamp has been stuck on centimeter-squared paper. Take each square to have a side of 1 cm.  USING FORMULA

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NCERT 5th Class (CBSE) Mathematics: Polygons And Circles

Mathematics

A polygon is a simple figure formed by connecting line segments. These line segments do not cross each other. Triangles and quadrilaterals (rectangles, squares, etc.) are examples of polygons. TRIANGLES The word triangle means three angles. The given triangle has three angles ∠A, ∠B and ∠C. Points A, B and C are the ...

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NCERT 5th Class (CBSE) Mathematics: Lines And Angle

Mathematics

CHECK IN   A protractor is used to measure angles. This angle is measured on the inner scale as the baseline arm point  to 0° on the inner scale. The other arm crosses 50° showing that ∠ AOB = 50°. Angles are named according to their measures.

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NCERT 5th Class (CBSE) Mathematics: Graphical Representation

Mathematics

Sometimes when we have a lot of information about things, it helps us to organize the information or data, as also called, Into graphs. Graphs  also help us understand and use the information in a proper manner. Graphs are pictorial or diagrammatic representations of data. PICTOGRAPHS Pictograph use pictures or ...

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NCERT 5th Class (CBSE) Mathematics: Application Of Percentage

Mathematics

PROFIT AND LOSS Mr Gupta makes very good rocking chairs. It coast him Rs. 795 to make one rocking chair. He sells it in his furniture shop at Rs. 900. Rs. 795 is the Cost Price (CP) of the chair. Rs. 900 is the Selling Price (SP) of the chair. ...

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NCERT 5th Class (CBSE) Mathematics: Percentage

Mathematics

Anisha collects ancient coins. She has collected 100 coins of which 43 coins. We can express this in many ways. Using fractions we can say 43/100 of her coins are Indian coins. Using decimals we can say 0.43 coins of her collection are Indian coins. We can also express this ...

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NCERT 5th Class (CBSE) Mathematics: Ratio And Proportion

Mathematics

Yash is an artist trying to find the perfect shade of green for his new painting. He is mixing. He is mixing tubes of yellow and blue paint to find his ‘perfect’ green. Subtraction is one way to compare the quantities of yellow and blue paint that Yash used 2 ...

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NCERT 5th Class (CBSE) Mathematics: Decimals

Mathematics

The place value of a digit decreases every time it move to the right. It gets ten times smaller for every move to the right. The Decimals point is always placed after the ones place. After the decimal point, the place values are tenths, hundredths, thousandths, … All these places ...

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NCERT 5th Class (CBSE) Mathematics: Fractions

Mathematics

A faction shows a part of a whole. A whole can be region or a collection. You are familiar with these fractions. Like Fractions: Fractions that have same denominator are called like fractions, e.g., 3/7, 5/7, 1/7 Unlike fractions: Factions that have different denominators are called unlike fractions, e.g., 4/7, ...

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