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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 taken4,675
Average score45.0%
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Problem
Solution
25 x 25
625
11 x 11
121
18 x 18
324
10 x 10
100
40 x 40
1600
Problem
Solution
1 x 1
1
3 x 3
9
14 x 14
196
15 x 15
225
20 x 20
400
Problem
Solution
8 x 8
64
24 x 24
576
22 x 22
484
2 x 2
4
12 x 12
144
Problem
Solution
27 x 27
729
4 x 4
16
17 x 17
289
13 x 13
169
19 x 19
361
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1 Comments
+1
Level 14
Dec 2, 2024
At first try 26 seconds