Ответ:
- \(−27+68−56+61=46\).
- \(4,17−9,42+0,2=−5,05\).
- \(3,1−4,72−8,12+0,96=−8,78\).
- \(−18,31−6,27−8,44+31,67=−1,35\).
- \(6\frac{5}{12}+4\frac{2}{3}−2\frac{3}{4}=\frac{77}{12}+\frac{56}{12}−\frac{33}{12}=\frac{100}{12}=8\frac{1}{3}\).
- \(4\frac{1}{8}−6\frac{2}{9}−3\frac{1}{6}+5\frac{3}{4}=\frac{297−448−228+414}{72}=\frac{35}{72}\).
Ответ: 1) 46; 2) −5,05; 3) −8,78; 4) −1,35; 5) \(8\frac{1}{3}\); 6) \(\frac{35}{72}\).
