commutative property of addition meaning in Hindi

• जोड का संचयी गुण

commutative: क्रमविनिमेय
commutative property: क्रमचयी गुणधर्म
property: रंगमंचीय सामग्री
of: स् का की पर बाबत
addition: अनुवृद्धि आधिक्य

This is the commutative property of addition.
It's quite possible to be ready for negative numbers at the age of six, assuming more basic operations and properties ( like the commutative property of addition, and addition itself in the first place ) are already understood.