Գումարման հատկությունները

$4 + 2 = 2 + 4$4, plus, 2, equals, 2, plus, 4

$1 + 2 + 3 + 4 = 4 + 3 + 2 + 1$1, plus, 2, plus, 3, plus, 4, equals, 4, plus, 3, plus, 2, plus, 1

$\blueD{(2 + 3) + 4} = \goldD{2 + (3 + 4)}$start color #11accd, left parenthesis, 2, plus, 3, right parenthesis, plus, 4, end color #11accd, equals, start color #e07d10, 2, plus, left parenthesis, 3, plus, 4, right parenthesis, end color #e07d10

$\phantom{=}\blueD{(2 + 3) + 4}$empty space, start color #11accd, left parenthesis, 2, plus, 3, right parenthesis, plus, 4, end color #11accd

$= 5 + 4$equals, 5, plus, 4

$=9$equals, 9

$\phantom{=}\goldD{2 + (3 + 4)}$empty space, start color #e07d10, 2, plus, left parenthesis, 3, plus, 4, right parenthesis, end color #e07d10

$= 2 + 7$equals, 2, plus, 7

$=9$equals, 9

$0 + 4 = 4$0, plus, 4, equals, 4

$6 + 0 =6$6, plus, 0, equals, 6