11+1
Commutativity of addition or the fact that addition is Abelian.
Addition=^^=
12 plus 9 equals 21.
20
19 plus 12 equals 31. This is because addition is a mathematical operation that combines two numbers to find their total sum. In this case, adding 19 and 12 together results in a sum of 31.
11+1
12.
Commutativity of addition or the fact that addition is Abelian.
Commutative Property of Addition
It is the commutative property of addition.
Addition is commutative. That is, a + b = b + a for all a, b
4 plus 8 is equal to 12. In arithmetic, addition is a basic operation that combines two numbers to give a total sum. In this case, adding 4 and 8 together results in 12.
6+6=12, easy :D
Addition=^^=
The sum of 7/15 and 5/12 equals 53/60
it equals 72. just do 12 X 6