Jump to exercise:
Count Backward by Twos
83, ,
46, , ,
91, ,
56, , ,
68, , , ,
80, ,
92, , , ,
31, , ,
38, , ,
47, ,
13, , ,
8, ,
99, ,
41, , , ,
26, , ,
77, ,
23, , , ,
55, , ,
18, , , ,
67, , ,
Your score is:
Excellent
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