Practice30Create account

The rule a + b = b + a says that we can add two numbers in any order. What is this rule called?

Class 6Rules and Formulas with VariablesAlgebra
  • AAssociativity of addition
  • BCommutativity of addition
  • CCommutativity of multiplication
  • DDistributivity

Step-by-Step Solution

Swapping the order of the two numbers in an addition does not change the sum. This is commutativity (order-changing) of addition.
Answer: B) Commutativity of addition

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 Rules and Formulas with Variables practice questions

More Class 6 Rules and Formulas with Variables practice

Which of these is an example of the rule a × b = b × a?A cycle has 2 wheels. Which rule gives the number of wheels on n cycles?Complete the distributive rule: a × (b + c) = ?Shreya uses a × (b + c) = a × b + a × c to work out 8 × 105 in her head. What answer…One pen costs ₹12. The cost of p pens is 12p rupees. What do 15 pens cost?