Question

Calculați : .
A . ( - 7 ) + ( - 13 ) = .
B . - 5 + ( - 25 ) = .
C . + 11 - ( - 15 ) = .
D . - 8 - ( + 6 ) = .
E . 4 - ( - 6 ) = .
F . - 11 - ( - 12 ) = .
G . 13 + ( - 12 ) = .
H . - 2020 - ( - 2021 ) = .
I . ( - 3 ) + ( - 2 ) + ( - 95 ) = .
J . - ( - 3 ) - ( + 3 ) = .

Answer 1

Răspuns:

Explicație pas cu pas:

a)  ( - 7) + ( - 13) = - 7 - 13 = - 20

b)  - 5 + ( - 25) = - 5 - 25 = - 30

c)  + 11 - ( - 15) = 11 + 15 = 26

d)  - 8 - ( + 6) = - 8 - 6 = - 14

e)  4 - ( - 6) = 4 + 10 = 14

f)   - 11 - ( - 12 ) = - 11 + 12 = 1

g)   13 + ( - 12) = 13 - 12 = 1

h)   - 2020 - ( - 2021) = - 2020 + 2021 = 1

i)   ( - 3 ) + ( - 2 ) + ( - 95) = - 3 - 2 - 95 = - 5 - 95 = - 100

j)  - ( - 3) - ( + 3) = + 3 - 3 = 0