Question

Efectuati
Ex 11 va rog repede dau coroana

Answer 1

Răspuns:

sper ca te am ajutat!

Explicație pas cu pas:

a)

1) ( -6 - 8 + 5 + 1 ) = -8

2) ( +3 - 9 - 2 + 4 ) = -4

3) 3 × -8 : -4 = 6

b)

1) ( +3 - 9 - 4 + 8 ) = -2

2) ( -5 + 4 - 2 + 4 ) = 1

3) -1 × -2 : 1 = 2

c)

1) ( -8 + 7 - 6 - 5 ) = -12

2) ( -3 + 9 - 1 - 4 ) = 1

3) -2 × -12 : 1 = 24

d)

1) ( +3 - 7 - 9 + 5 ) = -8

2) ( -6 - 2 + 5 + 1 ) = -2

3) -8 : -2 : 2 = 2

e)

1) - ( +8 - 2 - 5 - 9 ) = -8

2) ( -7 - 2 + 4 + 1 ) = -4

3) -8 : -4 = -2

f)

1) ( -6 + 8 - 5 - 1 ) = -4

2) ( -2 + 3 + 4 - 6 ) = -1

3) 1 + -4 : -1 = 3

g)

1) ( -8 - 3 + 2 + 7 ) = -2

2) ( +9 - 6 - 8 + 4 ) = -1

3) -3 + -2 : -1 = 5

h)

1) ( -5 - 4 + 3 + 6 ) = 0

2) ( -7 + 2 - 8 + 4 ) = -9

3) 0 : -9 = 0

i)

1) ( -2 + 8 - 9 + 1 ) = -2

2) ( -5 - 4 + 7 + 1 ) = -1

3) 5 - (-2) ÷ -1 = 4