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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 taken737
Average score60.0%
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problem
answer
33 - 4
29
78 - 56
22
85 - 68
17
83 - 59
24
86 - 42
44
problem
answer
77 - 24
53
33 - 11
22
14 - 10
4
72 - 30
42
78 - 32
46
problem
answer
75 - 24
51
61 - 41
20
93 - 59
34
76 - 48
28
62 - 5
57
problem
answer
18 - 17
1
41 - 35
6
37 - 21
16
61 - 47
14
30 - 10
20
1 Comments
+1
Level 78
Apr 13, 2023
Still pretty easy in a minute. I reckon I can do it in 30 seconds... I'll be back...