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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 taken1,711
Average score50.0%
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Problem
Solution
29 x 29
841
16 x 16
256
25 x 25
625
21 x 21
441
27 x 27
729
Problem
Solution
10 x 10
100
50 x 50
2500
11 x 11
121
18 x 18
324
8 x 8
64
Problem
Solution
5 x 5
25
22 x 22
484
15 x 15
225
26 x 26
676
12 x 12
144
Problem
Solution
40 x 40
1600
19 x 19
361
14 x 14
196
9 x 9
81
4 x 4
16
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