7 + 8 = 8 + 7
2007-03-12 19:56:24 · 4 answers · asked by Michelle P 1 in Science & Mathematics ➔ Mathematics
commutitive property of addition
eek knew the answer but wrote it wrong
it should be
a + b = b + a
it means a number plus a 2nd number is the same as the 2nd number plus the first number -- doesn't matter which order they are in
2007-03-12 20:16:31 · answer #1 · answered by Bill F 6 · 0⤊ 0⤋
Commutative Law
a+b=b+c
the other common laws are associative law
(a+b)+c = a+(b+c) just moving the ( ) around
(7 + 8)+1 = 7+(8+1)
15+1 = 7+9
16 = 16
The other law you prob run into is the distribution law
a(b+c)= ab+ac
7(8+2) = 7*8 + 7*2
7(10) = 56 + 14
70 = 70
2007-03-13 03:02:32 · answer #2 · answered by eeeek 1 · 2⤊ 0⤋
This is the commutative property of addition.
2007-03-13 03:00:08 · answer #3 · answered by gtdragongt 2 · 1⤊ 0⤋
commutative property of addition
2007-03-13 03:29:19 · answer #4 · answered by arman.post 3 · 0⤊ 0⤋