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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 taken722
Average score60.0%
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problem
answer
54 - 39
15
49 - 32
17
96 - 63
33
74 - 50
24
13 - 11
2
problem
answer
38 - 4
34
69 - 15
54
44 - 3
41
73 - 15
58
87 - 10
77
problem
answer
20 - 19
1
91 - 64
27
66 - 57
9
25 - 7
18
75 - 15
60
problem
answer
42 - 9
33
41 - 28
13
98 - 94
4
70 - 6
64
70 - 7
63
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...