100:20=5
101:20=5 rest 1 pentru ca 101=(5*20)+1=>100+1=101
102:20=5 rest 2 pentru ca 102=(5*20)+2=>100+2=102
103:20=5 rest 3 pentru ca 103=(5*20)+3=>100+3=103
104:20=5 rest 4 pentru ca 104=(5*20)+4=>100+4=104
105:20=5 rest 5.............................................................
106:20=5 rest 6................................................................
107:20=5 rest 7
108:20=5 rest 8
109:20=5 rest 9
110:20=5 rest 10
111:20=5 rest 11
112:20=5 rest 12
113:20=5 rest 13
114:20=5 rest 14
115:20=5 rest 15
116:20=5 rest 16
117:20=5 rest 17
118:20=5 rest 18
119:20=5 rest 19 pentru ca 119=(5*20)+19=>100+19=119
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mai departe da cu rest 6....adica=>120:20=6
