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2014-11-03T22:56:36+02:00
V810*40=V81*400=V81*V400=9*20=180

V90*6,4=V9*64=3*8=24

V16,9*0,4=V169/10 * 4/10=V169*4/100=13*2/10=13/5
5 4 5