Question

Calculeaza axb,în fiecare caz, stiind ca:
A) a=2700:100+3100:10-4x83 si b=3660:6-4x85+12x12


B) a=207x7-192x6+294:98 si b=15x81+4076:4-8888:4

Va rog repede

Answer 1

A)
a=2700:100+3100:10-4x83
a=27+310-332
a=337-332
a=5

b=3660:6-4x85+12x12
b=610-340+144
b=270+144
b=414

a×b=5×414=2 070


B)
a=207x7-192x6+294:98
a=1 449-1 152+3
a=297+3
a=300


b=15x81+4076:4-8888:4
b=1 215+1 019-2 222
b=2 234-2 222
b=12

a×b=300×12=3 600