Umíš počítat do sta?

99 – 7 =	88 – 4 =	– 3 = 30	80 – = 79
50 – 8 =	40 – 7 =	75 – 5 =	36 – 5 =
– 6 = 74	67 – = 63	59 – 3 =	19 – = 10
– 3 = 80	– 2 = 40	28 – 6 =	38 – 8 =
60 – = 56	40 – = 35	70 – = 64	59 – = 52