Question

7) calcule: a) -8+6+4 = b) 10-9-5 = c) 10-20-6+13 d) -7-21+11+16 = e) 6-11-5+9+1 =

Answer 1

Resposta:

Explicação passo a passo:

a

-8+6+4=

-2+4=

+2

b

10-9-5=

1-5=

-4

c

10-20-6+13=

-10-6+13=

-16+13=

-3

d

-7-21+11+16=

-28+11+16=

-17+16=

-1

e

6-11-5+9+1=

-5-5+9+1=

-10+9+1=

-1+1=

0