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cit iti da 10-10÷{1+3×(57-60÷4×2)÷3+210÷10}

Răspuns :

10-10:{1+3×(57-15×2):3+21}=
=10-10:{1+3×(57-30):3+21}
=10-10:{1+3×27:3+21}=
=10-10:{1+81:3+21}=
=10-10:{1+27+21}=
=10-10:{28+21}=
=10-10:49=
10-10:{1+3*(57-60:4*2):3+210:10}=
10-10:{1+3*(57-15*2):3+21}
10-10{1+3*(57-30):3+21}
10-10:{1+3*27:3+21}
10-10:{1+3*9+21}
10-10:{1+27+21}
10-10:49=
10-0,20=9,8