Вычислите: 7 - |-6|; |-4,2| + |5,9|; |-$$\frac{8}{9}$$| - |$$\frac{3}{4}$$|; 10 + |-290|; |-3,6| - |-2,7|; |4$$\frac{1}{9}$$| - |-2$$\frac{7}{18}$$|.

1. 7 - |-6| = 7 - 6 = 1
2. |-4,2| + |5,9| = 4,2 + 5,9 = 10,1
3. |-$$\frac{8}{9}$$| - |$$\frac{3}{4}$$| = $$\frac{8}{9}$$ - $$\frac{3}{4}$$ = $$\frac{32}{36}$$ - $$\frac{27}{36}$$ = $$\frac{5}{36}$$
4. 10 + |-290| = 10 + 290 = 300
5. |-3,6| - |-2,7| = 3,6 - 2,7 = 0,9
6. |4$$\frac{1}{9}$$| - |-2$$\frac{7}{18}$$| = 4$$\frac{1}{9}$$ - 2$$\frac{7}{18}$$ = 4$$\frac{2}{18}$$ - 2$$\frac{7}{18}$$ = 3$$\frac{20}{18}$$ - 2$$\frac{7}{18}$$ = 1$$\frac{13}{18}$$

Ответ: 1; 10,1; $$\frac{5}{36}$$; 300; 0,9; 1$$\frac{13}{18}$$