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Fast Math - Subtraction Quiz in 40 Seconds

In 40 seconds, which is 2 seconds per answer, try to beat the clock by answering these randomly-generated subtraction problems in your head.
Also try Photop's two-minute version with points
This quiz changes every time you play!
Quiz by Jerry928
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Last updated: April 13, 2023
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First submittedApril 13, 2023
Times taken728
Average score60.0%
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0:40
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problem
answer
80 - 1
79
95 - 89
6
81 - 2
79
87 - 25
62
38 - 18
20
problem
answer
70 - 61
9
62 - 5
57
47 - 17
30
93 - 29
64
27 - 11
16
problem
answer
37 - 33
4
17 - 7
10
77 - 16
61
84 - 14
70
44 - 9
35
problem
answer
65 - 29
36
89 - 31
58
89 - 84
5
62 - 20
42
28 - 24
4
1 Comments
+1
Level 77
Apr 13, 2023
Still pretty easy in a minute. I reckon I can do it in 30 seconds... I'll be back...