Fast Math - Square that Number! in 30 Seconds

In just 30 seconds, answer these randomly-generated squaring problems in your head.
The quiz changes every time you play!
Quiz by
Stewart
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Last updated: November 27, 2019
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First submittedNovember 21, 2018
Times taken4,750
Average score50.0%
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Problem
Solution
29 x 29
841
28 x 28
784
40 x 40
1600
50 x 50
2500
24 x 24
576
17 x 17
289
10 x 10
100
9 x 9
81
21 x 21
441
27 x 27
729
18 x 18
324
13 x 13
169
7 x 7
49
6 x 6
36
16 x 16
256
14 x 14
196
30 x 30
900
19 x 19
361
23 x 23
529
5 x 5
25
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1 Comments
+1
Level 14
Dec 2, 2024
At first try 26 seconds