MATEMATICA

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B

Bajdechi Iuliana-Claudia

-

ORDINEA EFECTUARII
OPERATIILOR CU
FRACTII
ZECIMALE FINITE

Obs.:
În rezolvarea exerciţiilor în care
apar operaţii nu numere zecimale,
ordinea efectuării operaţiilor şi
desfacerea parantezelor respectă
regulile învăţate la numere
naturale.

Într-un exerciţiu cu operaţii de
ordine diferite, fără paranteze, se
rezolvă în prima etapă operaţiile de
ordinul al III-lea (ridicările la putere),
apoi de ordinul al II-lea (înmulţirile şi
împărţirile) în ordinea scrierii, apoi se
efectuează operaţiile de ordinul I, tot
în ordinea scrierii.

Dacă un exerciţiu de calcul
conţine paranteze, atunci efectuăm
mai întâi operaţiile din parantezele
rotunde (după regulile de calcul
fără paranteze), apoi cele din
parantezele drepte şi la sfârşit
operaţiile din acolade.

MATEMATICA

MATEMATICA

MATEMATICA

MATEMATICA

MATEMATICA

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MATEMATICA

1. ORDINEA EFECTUARII OPERATIILOR CU FRACTII ZECIMALE FINITE

2.

3. Obs.: În rezolvarea exerciţiilor în care apar operaţii nu numere zecimale, ordinea efectuării operaţiilor şi desfacerea parantezelor respectă regulile învăţate la numere naturale.

4. Într-un exerciţiu cu operaţii de ordine diferite, fără paranteze, se rezolvă în prima etapă operaţiile de ordinul al III-lea (ridicările la putere), apoi de ordinul al II-lea (înmulţirile şi împărţirile) în ordinea scrierii, apoi se efectuează operaţiile de ordinul I, tot în ordinea scrierii.

5. Dacă un exerciţiu de calcul conţine paranteze, atunci efectuăm mai întâi operaţiile din parantezele rotunde (după regulile de calcul fără paranteze), apoi cele din parantezele drepte şi la sfârşit operaţiile din acolade.