Question

efetui:
a)-1-2-3=
b)-4-5-8+10=
c)-7+20-15+20-1=
d)-8-10-7+13-14+5-6=​

Answer 1

a)-1-2-3=  

- 6

b)-4-5-8+10=

- 17 + 10

-7

c)-7+20-15+20-1=

13 +5 -1

18 - 1

17

d)-8-10-7+13-14+5-6=

- 25 - 1 -1

- 27