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(va rog dau coronita) folosind proprietatile scaderi calculati :
a) 8, 7+23,15-2,7 =
b) 6,12 -2,36 +9,24=


Răspuns :

8,70+23,15=31,85-2,70=29,15
6,12-2,36=3,76+9,24=13,00
8,7+23,15-2,7=
31,85-2,7=
29,15

6,12-2,36+9,24=
3,75+9,24=
13,00