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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 taken1,657
Average score50.0%
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Problem
Solution
4 x 4
16
14 x 14
196
1 x 1
1
12 x 12
144
6 x 6
36
Problem
Solution
16 x 16
256
18 x 18
324
28 x 28
784
15 x 15
225
11 x 11
121
Problem
Solution
30 x 30
900
2 x 2
4
23 x 23
529
25 x 25
625
24 x 24
576
Problem
Solution
5 x 5
25
21 x 21
441
3 x 3
9
45 x 45
2025
7 x 7
49
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