Ответ:
Решение:
15 + 37 + 18 - 36 - 17 + 28 - 19 + 74 = \( (15+37+18+28+74) - (36+17+19) \) = \( 172 - 72 \) = 100
49 + 25 - 18 + 24 - 63 + 36 - 28 - 9 = \( (49+25+24+36) - (18+63+28+9) \) = \( 134 - 118 \) = 16
54 - 18 - 29 + 56 - 48 + 37 + 18 - 61 = \( (54+56+37+18) - (18+29+48+61) \) = \( 165 - 156 \) = 9
