Răspunsuri

2014-10-26T20:14:31+02:00
A: 12 . 55
faci exact cum se face la adunare si scadere ...
2014-10-26T20:15:15+02:00
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 .