Matematică, întrebare adresată de amaliamaryione, 9 ani în urmă

efectuati calculele:
a) 40-8251:{[8474-(8251:37+8028):37]:223+186}
b) 1701-{48+10*[272+13*(36*3-69:12)]:30-140}:24
c)420-{178++2*[32*3+2*(16*3-72:6)-36]:12}10


renatemambouko: c) 420-{178+2*[32*3+2*(16*3-72:6)-36]:12}:10=
=420-{178+2*[96+2*(48-12)-36]:12}:10=
=420-[178+2*(96+2*36-36):12]:10=
=420-(178+2*132:12):10=
=420-(178+22):10=
=420-200:10=420-20=400
amaliamaryione: multumesc
renatemambouko: si b) ???
amaliamaryione: 153
amaliamaryione: trebuie sa dea
renatemambouko: scrie corect exercitiul
amaliamaryione: aa
amaliamaryione: 1701-{48+10*[272+13*(36*3-96:12)]:30-140}:24
renatemambouko: b) 171-{48+10*[272+13*(36*3-96:12)]:30-140}:24=
= 171-{48+10*[272+13*(108-8)]:30-140}:24=
= 171-{48+10*[272+13*100]:30-140}:24=
= 171-(48+10*1572:30-140):24=
= 171-(48+524-140):24=
= 171-432:24=.
=171-18=153
renatemambouko: in loc de 1701 trebuia sa fie 171 la inceputul exercitiului, altfel nu da 153

Răspunsuri la întrebare

Răspuns de renatemambouko
9
a) 40-8251:{[8474-(8251:37+8028):37]:223+186}=
=40-8251:{[8474-(223+8028):37]:223+186}=
=40-8251:[(8474-8251:37):223+186]=
=40-8251:[(8474-223):223+186]=
=40-8251:(8251:223+186)=
=40-8251:(37+186)=
=40-8251:223=
=40-37=3


b) 171-{48+10*[272+13*(36*3-96:12)]:30-140}:24=
= 171-{48+10*[272+13*(108-8)]:30-140}:24=
= 171-{48+10*[272+13*100]:30-140}:24=
= 171-(48+10*1572:30-140):24=
= 171-(48+524-140):24=
= 171-432:24=.
=171-18=153



c) 420-{178+2*[32*3+2*(16*3-72:6)-36]:12}:10=
=420-{178+2*[96+2*(48-12)-36]:12}:10=
=420-[178+2*(96+2*36-36):12]:10=
=420-(178+2*132:12):10=
=420-(178+22):10=
=420-200:10=420-20=400


amaliamaryione: multumesc mult!
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