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Calculati:
37 de grade 46'+ 24 de grade 22'
90 de grade - 36 de grade 27'


Răspuns :

37 de grade 46'+ 24 de grade 22'=
(37grade+24grade)+(46'+22')=
61grade 68'=(61grade+1grad)+(68'-60')=62grade8'
90 de grade - 36 de grade 27'=
89grade60'-36grade27'=
(89grade-36grade)+(60'-27')=53grade33'