1.
3c...3p.....21lei
3c...4p.....24lei
---------------------------
-......1....3
3 : 1 = 3(1 p)
3x3=9 (3p)
21-9=12 (3c)
12 : 3 = 4 (1c)
2.
3mingi......4masinute....146lei
3mingi......7masinute.....224
------------------------------------------------
-................3............78
78 : 3 = 26(1 masinuta)
26 x 4 = 104(4 masinute)
146- 104= 42(3 mingi)
42 : 3 =14(1 minge)
4.
4jc........5jp........820lei
2jc........4jp........518lei/x2
--------------------------------------------
-...........1...........216
216: 1= 216(1 jp)
216 x 5 = 1080( 5 jp)
1080- 820= 260( 4 jc)
260 : 4=65(1jc)
Revin dupa ce imi fac temele :)