1) -1-(-15) 4) -2,16 : 3/50 2) -1,95-8,68 5) 1 1/8-3 5/6 3) -7-(-4)+3

Решение:

1. \( -1 - (-15) = -1 + 15 = 14 \)
2. \( -2,16 : \frac{3}{50} = -2,16 \cdot \frac{50}{3} = -0,72 \cdot 50 = -36 \)
3. \( -1,95 - 8,68 = -10,63 \)
4. \( 1 \frac{1}{8} - 3 \frac{5}{6} = \frac{9}{8} - \frac{23}{6} = \frac{27}{24} - \frac{92}{24} = -\frac{65}{24} = -2 \frac{17}{24} \)
5. \( -7 - (-4) + 3 = -7 + 4 + 3 = 0 \)

Ответ: 1) 14; 2) -36; 3) -10,63; 4) -2 \(\frac{17}{24}\); 5) 0.