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Calculati:
a)27Grade32'+15Grade47'-30Grade24'
b)145Grade17'24"+17Grade24'15"+4Grade3'57"
c)45Grade-24Grade5'17"+24Grade55'12"
d)180Grade-72Grade41'14+19Grade17'53"

Răspuns :

Nicoletaionela3
a: 12 . 55
faci exact cum se face la adunare si scadere ...
a)27g32'+
15g47 =  42g79'   79'=1g  ramane 43g si 19'  

43g19'-
30g24' = 42g 79' - 30g24' =   12g 55' 

b))145Grade17'24"+17Grade24'15"+4Grade3'57"

145g17'24'' +
17g24'15'' =  162g 41'39'' + 4g3'57'' =        166g44'96'' rezulta  166g45'36'' 
sper ca te-am ajutat .

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