one up one down (backwards)

recognize 1 off from perfect squares
Quiz by remo0033
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Last updated: March 28, 2021
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First submittedMarch 28, 2021
Times taken11
Average score8.0%
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x^2
x
483
21 23
24
4 6
440
20 22
255
15 17
360
18 20
528
22 24
8
2 4
63
7 9
48
6 8
99
9 11
323
17 19
35
5 7
3
1 3
x^2
x
0
0 2
399
19 21
624
24 26
224
14 16
80
8 10
120
10 12
575
23 25
15
3 5
143
11 13
168
12 14
288
16 18
195
13 15
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