Question

Calculati
1-{2+(3-4)-[6-(7-8)+(9-10)]-11}+12=
Dau coroana​

Answer 1

Explicație pas cu pas:

1-{2+(3-4)-[6-(7-8)+(9-10)]-11}+12=

1-{2+(-1)-[6-(-1)+(-2)]-11}+12=

1 - { 2 - 1 - [ 6 + 1 - 2] - 11} + 12 =

1 - [ 1 - (7 - 2) - 11] + 12 =

1 - [ 1 - 5 - 11] + 12 =

1 - ( - 4 - 11) + 12 =

1 - ( - 15) + 12 =

1 + 15 + 12 = 28

Answer 2

1 - {2 + (3 - 4) - [6 - (7 - 8) + (9 - 10)] - 11} + 12 =

1 - {2 + (- 1) - [6 - (- 1) + (- 1)] - 11} + 12 =

1 - [2 - 1 - (6 + 1 - 1) - 11] + 12 =

1 - (1 - 6 - 11) + 12 =

1 - (- 16) + 12 =

1 + 16 + 12 =

17 + 12 = 29