A) \[-0.9 + 3 = 2.1\]
Б) \[\frac{4}{5} - 1.2 = 0.8 - 1.2 = -0.4\]
B) \[-1.2 + 0.3 = -0.9\]
Г) \[-1\frac{2}{3} + 5\frac{1}{6} = -\frac{5}{3} + \frac{31}{6} = -\frac{10}{6} + \frac{31}{6} = \frac{21}{6} = \frac{7}{2} = 3.5\]
Д) \[-10.2 - 8 = -18.2\]
E) \[-1\frac{1}{2} - 2.5 = -1.5 - 2.5 = -4\]
Ё) \[-2.4 - 0.26 = -2.66\]
Ж) \[-2.4 + 0.26 = -2.14\]
3) \[-1\frac{7}{15} - 3\frac{5}{6} = -\frac{22}{15} - \frac{23}{6} = -\frac{44}{30} - \frac{115}{30} = -\frac{159}{30} = -\frac{53}{10} = -5.3\]
И) \[-5 + 4.3 = -0.7\]
Й) \[-\frac{8}{9} + 2\frac{1}{6} = -\frac{8}{9} + \frac{13}{6} = -\frac{16}{18} + \frac{39}{18} = \frac{23}{18} = 1\frac{5}{18}\]
К) \[0.04 - 0.2 = -0.16\]
Л) \[-1\frac{11}{35} - \frac{1}{21} = -\frac{46}{35} - \frac{1}{21} = -\frac{138}{105} - \frac{5}{105} = -\frac{143}{105} = -1\frac{38}{105}\]
М) \[-1\frac{11}{35} + \frac{1}{21} = -\frac{46}{35} + \frac{1}{21} = -\frac{138}{105} + \frac{5}{105} = -\frac{133}{105} = -\frac{19}{15} = -1\frac{4}{15}\]
Н) \[0.7 - 2 = -1.3\]
Ответ: A) 2.1, Б) -0.4, B) -0.9, Г) 3.5, Д) -18.2, E) -4, Ё) -2.66, Ж) -2.14, 3) -5.3, И) -0.7, Й) 1 5/18, К) -0.16, Л) -1 38/105, М) -1 4/15, Н) -1.3