Question

a) –5∙{+7+[+9+(–2–5+3)∙(–6+2+5)]:(–5)} =
b) {–3∙[–5–(+4–6–2):(–9+2+3)–10]}:(–8) =
c) {+1–[+7–(+8+9–5):(+6–7–5)]:(–3)}:(–2) =
d) –2∙{–9–[+8–2∙(–3+1–6)]:(–9+7–4)} =
e) {–3∙[–6+(+2–5+7)∙(–3+5–2)]–9 }:(+6–1–2) =
f) {+9–[–8–(–8):(–2)+(–9):(–3)]:(–3)}:(–3) =
g) {+7–[–1–(–5+2–7):(–5)+8]:(–5)}:(–2)=
h) {+2–[+6–4:(–2)+6:(–2)+3]:(–2)}:(–2) =
i) {+5–[–6–3:(+3)–4:(–4)+8]:(–2)}:(–2) =
j) {+3–[+6–(–8+2+1):(–5)–4:(+2)]:(–3)}:(–2)

Answer 1

Răspuns:

A)- 30

B)-6

Explicație pas cu pas:

-2-5+5=-4 * -6+2+5=1

9+(-4*1)=9-4=5

5:(-5)=-1

7-1=6

-5*6=-30

B) 4-6-2=-4

-9+2+3=-4 ; - 4:-4=1

-5-1=-6 ;-6-10=-16 ; - 16*-3= 48; 48:-8= - 6

C)