Problem | Solution | % Correct |
---|---|---|
2x22 | 44 | 100%
|
+35 | 123 | 97%
|
+2 | 125 | 97%
|
/25 | 5 | 97%
|
x2 | 88 | 97%
|
x2 | 150 | 94%
|
+76 | 226 | 94%
|
+4 | 230 | 94%
|
x15 | 75 | 94%
|
x3 | 138 | 91%
|
/5 | 46 | 91%
|
+52 | 190 | 89%
|
x2 | 1520 | 77%
|
x4 | 760 | 77%
|
/5 | 304 | 66%
|
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