operaţiilor:
42 - 6 X 3+ (32 – 5 x 5) =
6 X (24 – 14:2) - 54 =
(100 – 35 + 45 – 15) x 7 + (90 - 9X8 ) =
32:4+ ( 72 - 36):9+ 6 x ( 16 + 24: 4) =​