Question

For any whole nouber a,b,c is it true that (a+b)+c=a+(c+b) ?give reason

Answer 1

e.g. 4,5,6

( 4+5 ) +6 = 4 + (5+ 6)

9+6. = 4 +11

15 = 15

Answer 2

Answer:

(a+b)+c=a+(c+b) because the sum of 2 or more nos. remains the same even if their order is changed