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 …

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 …

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 …

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, …

WHO IS RIGHT? Meera:  3+4×8 = 56 Manu: 3+4×8 = 35 Meera and Manu were both given the same question to solve. Notice that they both got different answer because Meera added first and Manu multiplied first. To be sure that there should be only one answer for sums like …

ADDITION AND SUBTRACTION Properties of Addition: When you change the order of the addends, the sum does not change. The sum of any number and zero is that same number. Adding large numbers is the same as adding smaller numbers. You start from the ones place and regroup (carry over) …

A. Factors are the numbers that are multiplied to give a product. 5×4 = 20 5 and 4 are factors of 20. factors of number also divide that number without leaving any remainder. 24÷3 = 8 (8 and 3 are both factors of 24.) B. When you multiply a number …

Large Numbers We use only 10 digits in our place value system to write any number, no matter how large it is. The value of the digit depends on its place in the number. Can you read the number in the following sentence? India is the seventh largest country in …