a+b=b+a is an example of
7+0=7 is an example of
(a+b)+c=a+(b+C) is the
a Xb = bXa is the
a X 1= a is and example of the
(a X b) X c = a X (b X c)
4 X 0= 0 is an example of:
a X (b+c) = (a X b) + (a X c)
a x 0 = a
(4 X 8) + (4 X 3) = 4 X (8+ 3)
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