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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 taken4,714
Average score45.0%
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Problem
Solution
22 x 22
484
17 x 17
289
45 x 45
2025
20 x 20
400
29 x 29
841
Problem
Solution
5 x 5
25
14 x 14
196
7 x 7
49
1 x 1
1
15 x 15
225
Problem
Solution
4 x 4
16
28 x 28
784
11 x 11
121
10 x 10
100
2 x 2
4
Problem
Solution
8 x 8
64
30 x 30
900
9 x 9
81
27 x 27
729
24 x 24
576
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Your Next Quiz
Answer these randomly generated division problems.
Solve these randomised square root problems as fast as you can!
Guess any number that fits in each series of categories until only one number remains.
Answer these questions with a single digit from 0 to 9. But be careful! Three wrong answers ends the quiz.
1 Comments
+1
Level 14
Dec 2, 2024
At first try 26 seconds