Problem | Answer | % Correct |
---|---|---|
20 - 20 = | 0 | 100%
|
20 - 7 = | 13 | 99%
|
18 - 3 = | 15 | 99%
|
19 - 0 = | 19 | 99%
|
19 - 16 = | 3 | 99%
|
19 - 14 = | 5 | 99%
|
18 - 12 = | 6 | 99%
|
15 - 6 = | 9 | 99%
|
16 - 5 = | 11 | 98%
|
20 - 3 = | 17 | 98%
|
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