Q1: Priya is experimenting with sums of odd numbers. What happens to the parity of the sum when she adds (a) […]

Q1: What is the measure of each angle formed when two perpendicular lines intersect? Ans: When two lines are perpendicular, they

Q1: If Aftab’s age is represented by “a”, and Shabnam is 5 years older than Aftab, write an algebraic expression for

Q1. Sonu measured the length of his lower arm as 2.7 units and his upper arm as 3.6 units. What is

Q1: Rewrite the expression 45 − (12 + 8) by removing the brackets and explain the changes in the signs

Q1: Write in numerals: twelve crore thirty-four lakh fifty-six thousand seven hundred eighty-nine.  Ans: 12,34,56,789Explanation: In the Indian system we group digits as