- \( -18.088 : 3.8 = -4.76 \).
- \( -13.7 \cdot (-4.6) = 63.02 \).
- \( -2\frac{7}{8} - 5.6 = -2.875 - 5.6 = -8.475 \).
- \( (313.95 : (-6.5) - 2.3)\cdot 1.5 + 3.98 = (-48.3 - 2.3)\cdot 1.5 + 3.98 = -50.6\cdot 1.5 + 3.98 = -75.9 + 3.98 = -71.92 \).
Ответ: а) −4,76; б) 63,02; в) −8,475; г) −71,92.