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1. 7500-(1250-1250)=
5780-(1075+2750)=
10000-(3019+3078)=


2. rezolva exercitile folosind ordinea efectuariu operatiilor a)
(6308-108-100)+2334=
b) 7000-(2400+845-1350)=


Răspuns :

1)7500-(1250-1250)=7500-0=7500

5780-(1075+2750)=5780-3825=1955

10.000-(3019+3078)=10.000-6097=3903

2) 6100+8434=14534

7000-1895=5105