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Calculati:[403:13-(6309:9+7×4):27]:2-1

Răspuns :

[403:13-(6309:9+7×4):27]:2-1=
=
[31-(701+28):27]:2-1=
=(31-729:27):2-1=
=(31-27):2-1=
=4:2-1=
=2-1=1
[403:13-(6309:9+7×4):27]:2-1= =[403:13-(701+28):27]:2-1= =(403:13-729:27):2-1= =(31-27):2-1= =4:2-1= =2-1= =1