- A6
- B5
- C10
- D4
Step-by-Step Solution
With a = 9, b = 4: a - b = 9 - 4 = 5, but b - a = 4 - 9 = -5. Since 5 is not -5, subtraction is not commutative and Aarav is wrong.
Answer: B) 5
Aarav says: "For any two integers a and b, a - b = b - a."
Give one pair of integers that proves Aarav wrong, then state the value of a - b for that pair.
Use a = 9 and b = 4. What is a - b?
Class 7Properties of IntegersIntegers
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Properties of Integers practice questions
More Class 7 Properties of Integers practice
A shopkeeper in Pune records a loss of ₹50 on each of 12 days as the integer -50. Using…Meera wants to compute 18 x 25 mentally. She rewrites it as 18 x (20 + 5) and adds the…Ravi claims that integers are closed under division because 8 / 4 = 2 is an integer. Is…Two students simplify (-4) x 17 x (-25). One reorders the factors as (-4) x (-25) x 17.…A lift in a Mumbai building starts at the ground floor (level 0). It goes down 3 floors,…