6. Найди значения выражений.(69 – 68) - 8-5-8- 3920 – 54:68 : 4 : 6(35 - 21): 7 (30 - 3) :9(55 + 26) : 9(48 - 8) : 814:21​

1 - (69 – 68) - 8-5-8- 39

1) 69 – 68 = 1

2) 8-5-8 = -5

3) 1 + 5 - 39 = 33

2 - 20 – 54:6 = 11

1) 54:6 = 9

2) 20 - 9 = 11

3 - 8 : 4 : 6 = 0,3

4 - (35 - 21): 7 (30 - 3) :9 = 6

1) 35 - 21 = 14

2) 30 - 3 = 27

3) 14 : 7 = 2

4) 27 : 7 = 3

5) 2 * 3 = 6

5 - (55 + 26) : 9 = 9

1) 55 + 26 = 81

2) 81 : 9 = 9

6 - (48 - 8) : 8 = 5

1) 48 - 8 = 40

2) 40 : 8 = 5

7 - 14:21​ = 1,5