Kolik musíš ubrat, abys dostal daný výsledek?

16 – = 10	19 – = 13	19 – = 12	19 – = 11
19 – = 15	18 – = 16	17 – = 14	18 – = 13
20 – = 18	20 – = 16	20 – = 15	20 – = 17
20 – = 12	20 – = 14	20 – = 19	20 – = 13
20 – = 12	15 – = 10	20 – = 11	18 – = 11