1091. Выполните вычитание:

Решение:

1. \( 10 - (-3) = 10 + 3 = 13 \)
2. \( 12 - (-14) = 12 + 14 = 26 \)
3. \( -21 - (-19) = -21 + 19 = -2 \)
4. \( 9 - (-9) = 9 + 9 = 18 \)
5. \( -1,4 - 1,4 = -2,8 \)
6. \( -5,6 - (-3,1) = -5,6 + 3,1 = -2,5 \)
7. \( 2,5 - 8,5 = -6 \)
8. \( 0 - (-40,6) = 0 + 40,6 = 40,6 \)
9. \( 0 - 64,8 = -64,8 \)
10. \( -7,62 - (-7,62) = -7,62 + 7,62 = 0 \)
11. \( -0,21 - 0 = -0,21 \)
12. \( -3\frac{1}{4} - 0,75 = -3,25 - 0,75 = -4 \)
13. \( \frac{5}{12} - \left(-\frac{1}{12}\right) = \frac{5}{12} + \frac{1}{12} = \frac{6}{12} = \frac{1}{2} \)
14. \( -\frac{4}{9} - \frac{2}{3} = -\frac{4}{9} - \frac{6}{9} = -\frac{10}{9} = -1\frac{1}{9} \)
15. \( -\frac{7}{15} - \left(-\frac{2}{15}\right) = -\frac{7}{15} + \frac{2}{15} = -\frac{5}{15} = -\frac{1}{3} \)
16. \( -\frac{2}{15} - \left(-\frac{7}{15}\right) = -\frac{2}{15} + \frac{7}{15} = \frac{5}{15} = \frac{1}{3} \)
17. \( -1\frac{3}{8} - \frac{1}{4} = -1\frac{3}{8} - \frac{2}{8} = -1\frac{5}{8} \)
18. \( 1\frac{5}{11} - 2\frac{3}{22} = 1\frac{10}{22} - 2\frac{3}{22} = -1\frac{-7}{22} = -1\frac{7}{22} \)

Ответ: 13; 26; -2; 18; -2,8; -2,5; -6; 40,6; -64,8; 0; -0,21; -4; \(\frac{1}{2}\); \(-1\frac{1}{9}\); \(-\frac{1}{3}\); \(\frac{1}{3}\); \(-1\frac{5}{8}\); \(-1\frac{7}{22}\).