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Rezilvati in doua moduri:
a) 7x(123.234+2.372)=
b)21x47+1.532x21-21x12=


Răspuns :

a)7x(123.234+2.372)=
   7x125.606=
   879.242

b)21x47+1.532x21-21x12=
   987+32.172-252=
   33.159-252=
   32.907