a) a = 2700:100+3100:10-4×83
a = 27+310-332
a = 337-332
a = 5.
b = 3660:6-4×85-12×12
b = 610-340-144
b = 270-144
b = 126.
a×b = 5×126 = 630.
b) a = 270×7-192×6+294:98
a = 1890-1152+3
a = 738+3
a = 741.
b = 15×81+4076:4-8888:4
b = 1215+1019-2222
b = 2234-2222
b = 12.
a×b = 741×12 = 8892.
Sper că te-am ajutat :)
