Răspunsuri

2014-09-22T16:50:27+03:00
840-642=198 (c)
840-553=287 (a)
287+198=485
840-485=355 (b)
a+b+c=287+355+198=840
1 5 1
2014-09-22T19:26:11+03:00
840-642=198 C
840-553=287 A
287+198=485
840-485=355 B
a+b+c=287+355+198=840