Найди значение выражения: a) 25-63-143 6) 35-13-11 B) 19-8-5-11 22-4-20-199 2) 4,2-3,2 5,6 5) 4,5-3,9 1,3-0,99

Решение:

а) \(25-63-143\) = \(25 - (63+143)\) = \(25 - 206\) = \(-181\)

б) \(\frac{35-13-11}{19 \cdot 8 \cdot 5 \cdot 11}\) = \(\frac{35 - 24}{7600}\) = \(\frac{11}{7600}\)

в) \(\frac{22 \cdot 4 - 20 \cdot 199}{4.5-3.9}\)

г) \(\frac{4.2-3.2}{5.6}\) = \(\frac{1}{5.6}\)

д) \(\frac{4.5-3.9}{1.3-0.99}\) = \(\frac{0.6}{0.31}\)