Ответ:
- \(\frac{4.2+3.3}{0.3}=\frac{7.5}{0.3}=25\).
- \(\frac{5.6}{1.9-7.5}=\frac{5.6}{-5.6}=-1\).
- \(\frac{21}{17.5\cdot0.8}=\frac{21}{14}=1.5\).
- \(\frac{5.6\cdot0.3}{0.8}=\frac{1.68}{0.8}=2.1\).
- \(7.6-8\cdot(-5.2)=7.6+41.6=49.2\).
- \(\frac{1.2}{1-\frac{1}{3}}=\frac{1.2}{\frac{2}{3}}=1.8\).
Ответ: 1) 25; 2) −1; 3) 1,5; 4) 2,1; 5) 49,2; 6) 1,8.
