Ответ:
1) 52 - 16 : 4 + 12 = 52 - 4 + 12 = 48 + 12 = 60
2) 52 - 16 : (4 + 12) = 52 - 16 : 16 = 52 - 1 = 51
3) (52 - 16) : 4 + 12 = 36 : 4 + 12 = 9 + 12 = 21
4) 8 * (13 - 7) = 8 * 6 = 48
5) 14 : (20 - 6) = 14 : 14 = 1
6) 9 * (15 - 8) = 9 * 7 = 63
2) 52 - 16 : (4 + 12) = 52 - 16 : 16 = 52 - 1 = 51
3) (52 - 16) : 4 + 12 = 36 : 4 + 12 = 9 + 12 = 21
4) 8 * (13 - 7) = 8 * 6 = 48
5) 14 : (20 - 6) = 14 : 14 = 1
6) 9 * (15 - 8) = 9 * 7 = 63
