# 1बहुविकल्पीWhich of the following is true for all whole numbers a and b: a + b = b + a?Always trueAlways falseOnly when a = bOnly when a or b = 0
# 3बहुविकल्पीThe identity property of addition states that:Adding 1 gives identityAdding 0 gives identityMultiplying by 0 gives identityMultiplying by 1 gives identity
# 4बहुविकल्पीWhich property does (2 + 4) + 7 = 2 + (4 + 7) demonstrate?Commutative propertyDistributive propertyAssociative propertyIdentity property