Question

urgent dau coroniță plssss toate cele 3 ex ​

Answer 1

Răspuns:

1. a) -7

b) 7

c) -1

d) 1

2. a) -16

b) 16

c) -6

d) 6

3. a) -9

b) -14

c) -3

d) -10

e) -23

Answer 2

Răspuns:

1)

- 4-3=-7

+4+3=+7

-4+3=-1

+4-3=1

2)

-11-5=-16

11+5=16

-11+5=-6

+11-5=6

3)

-12+2-5+6= - 10-5+6

= - 15+6

= -9

-2+4-10-11+5= 2-10-11+5

=-8-11+5

=-19+5

=-14

7-15+4-1+2=

= -8+4-1+2

= -4-1+2

= -5+2

= - 3

-5+5+15-20-6+1=

= 0+15-20-6+1

= - 5-6+1

= -11+1

= - 10

4-8+6-11-5-9=

=-4+6-11-5-9

=2-11-5-9

= -9-5-9

= -14-9

= - 25