6) 45+ 24*5-(59-9); г) 270 : (303 : 3-11) +48; e) 48- (31-15)*2-2; 3) 54: (13-10)* 2+36.

б) 45 + 24 * 5 - (59 - 9) = 45 + 120 - 50 = 165 - 50 = 115

г) 270 : (303 : 3 - 11) + 48 = 270 : (101 - 11) + 48 = 270 : 90 + 48 = 3 + 48 = 51

e) 48 - (31 - 15) * 2 - 2 = 48 - 16 * 2 - 2 = 48 - 32 - 2 = 16 - 2 = 14

з) 54 : (13 - 10) * 2 + 36 = 54 : 3 * 2 + 36 = 18 * 2 + 36 = 36 + 36 = 72