Subject: Mathematics
Book: Maths Mastery
Rounding numbers helps to simplify data interpretation, especially when dealing with lengthy decimals or when exact precision is not essential. The core principle: if the digit to the right of your rounding place is 5 or more, you round up; otherwise, you round down. For instance, to round 3.678 to the nearest tenth, look at the hundredths digit (7); since it’s ≥ 5, 3.678 becomes 3.7. Similarly, rounding 3.678 to the nearest hundredth yields 3.68. Rounding is widely used in financial transactions (rupee/cents rounding), scientific measurements, and everyday approximations for easier communication and calculation.
If a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?
View QuestionWhat is the square root of 0.25?
View QuestionIf x^2 - 6x + 9 = 0, what is the value of x?
View QuestionWhat is the sum of all even numbers between 1 and 100?
View QuestionIf the perimeter of a square is 40 cm, what is the area of the square?
View QuestionThe LCM of two numbers is 60, and their HCF is 5. If one of the numbers is 20, what is the other number?
View QuestionA man spends 75% of his income and saves Rs. 600. What is his total income?
View QuestionThe perimeter of a rectangle is 40 cm, and its length is 12 cm. What is its width?
View QuestionWhat is the sum of all even numbers between 1 and 50?
View QuestionIf x:y = 4:5 and y:z = 2:3, what is x:z?
View Question