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A.(9*99-99:9)-[(83-27:9)*10+2*35]
B.634-[(206*4-618:3):3]*2+3*(10:2+630:9)
C.[(3+3)*3-3+3*(3+3:3)]:3-3*3+3:3*1+3:1

Răspuns :

Romaniaitalia02
a)(891-11)-[(83-3)*10+2*35]=
880-(80*10+2*35)=
880-(800+70)=
880-870=
10
b)634-[(824-206):3]*2+3*(5+70)=
(618:3)*2+3*75=
206*2+3*75=
412+225=
637
c)[6*3-3+3*(3+1)]:3-3*3+3:3*1+3:1=
(18-3+3*4):3-3*3+1*1+3
(18-3+12):3-3*3+1*1+3=
(15+12):3-3*3+1*1+3=
27:3-3*3+1+3=
9-9+1+3=
0+1+3=
1+3=
4

Primăvară2017
A.
(9*99-99:9)-[(83-27:9)*10+2*35]=
(891-11)-[(83-3)*10+70]=
880-(80*10+70)=
880-(800+70)=
880-870=
10


B.
634-[(206*4-618:3):3]*2+3*(10:2+630:9)=
634-[(824-206):3]*2+3*(5+70)=
634-(618:3)*2+3*75=
634-206*2+225=
634-412+225=
222+225=
447

C.
[(3+3)*3-3+3*(3+3:3)]:3-3*3+3:3*1+3:1=
[6*3-3+3*(3+1)]:3-9+1*1+3=
(18-3+3*4):3-9+1+3=
(18-3+12):3-9+1+3=
(15+12):3-9+1+3=
27:3-9+1+3=
9-9+1+3=
0+1+3=
1+3=
4

Dacă tu crezi că merit, astept coroana!



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