Yes.
The concept of being able to swap numbers in an addition sum is called the commutative property of addition.
180
The Commutative property just says that it doesn't matter what order the numbers are in, you will get the same answer. Examples would be 1+5=6 and 5+1=6 34+20+1=55 and 20+1+34=55
110
55 + 27 + 65 = 147
32 + 40 + 55 + 33 = 160
143
55+(-20) equals 35
55
90
55 + x = 180 x = 180 - 55 x = 125
Yes. The answer is......................................................................................................................................................................................................................................................2.