For example
Take two whole numbers 2 and 5.
Addition =2+5=7 also 5+2=7, You can add whole nos. in any order which gives same results.
Subtraction 2−5=−3 also 5−2=3
Multiplication=2×5=10 also 5×2=10 You can multiply whole nos. in any order which gives same results.
Division=2÷5=0.4 also 5÷2=2.5
Whole numbers are commutative under addition and multiplication.