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URGENTTT!!!! Dau COROANA!!!
20PUNCTE


URGENTTT Dau COROANA 20PUNCTE class=

Răspuns :

3 s = 30 (1 s = 30:3; 1 s = 10)
2 p =20-10 (2 p =10; 1 p=10:2 ;1 p =5)
4 d = 9-5 (4 d = 4 ;1 dop = 4:4 ;1 d =1)
5+1×10= 5+10
=15
10+10+10=30
10+5+5=20
5+2+2=9
5+1×10=15