Easy level

This level has a single operation per question and the terms are at most 4 digits (including decimals). All answers have 4 digits or less. This is (much) simpler than a real trading test. If you want you can also try this level as a test (posts to !) or set up a custom exercise.

Medium level

This level has a maximum of 4 operations per question and all terms are at most 5 digits including the decimal part. All answers have 5 digits or less. This is about the level of some trading tests. If you want you can also try this level as a test (posts to !) or set up a custom exercise.

Hard level

This level has a maximum of 6 operations per question and all terms are at most 6 digits including the decimal part. All answers have 5 digits or less. This is beyond the level of most trading tests. If you want you can also try this level as a test (posts to !) or set up a custom exercise.

250 ) { $_GET['questionCount'] = 80; } if( ! isset( $_GET['maxTermLength'] ) || ! is_numeric( $_GET['maxTermLength'] ) || $_GET['maxTermLength'] <= 0 || $_GET['maxTermLength'] > 20 ) { $_GET['maxTermLength'] = 6; } if( ! isset( $_GET['maxTermDecimalLength'] ) || ! is_numeric( $_GET['maxTermDecimalLength'] ) || $_GET['maxTermDecimalLength'] <= 0 || $_GET['maxTermDecimalLength'] > 20 ) { $_GET['maxTermDecimalLength'] = 3; } if( ! isset( $_GET['maxAnswerLength'] ) || ! is_numeric( $_GET['maxAnswerLength'] ) || $_GET['maxAnswerLength'] <= 0 || $_GET['maxAnswerLength'] > 20 ) { $_GET['maxAnswerLength'] = 4; } if( ! isset( $_GET['maxAnswerDecimalLength'] ) || ! is_numeric( $_GET['maxAnswerDecimalLength'] ) || $_GET['maxAnswerDecimalLength'] < 0 || $_GET['maxAnswerDecimalLength'] > 20 ) { $_GET['maxAnswerDecimalLength'] = 3; } if( ! isset( $_GET['minOperations'] ) || ! is_numeric( $_GET['minOperations'] ) || $_GET['minOperations'] <= 0 || $_GET['minOperations'] > 9 ) { $_GET['minOperations'] = 1; } if( ! isset( $_GET['maxOperations'] ) || ! is_numeric( $_GET['maxOperations'] ) || $_GET['maxOperations'] <= 0 || $_GET['maxOperations'] > 9 ) { $_GET['maxOperations'] = 4; } if( $_GET['minOperations'] > $_GET['maxOperations'] ) { $_GET['minOperations'] = 1; $_GET['maxOperations'] = 4; } if( ! isset( $_GET['mode'] ) || ( //$_GET['mode'] != 'exam' && $_GET['mode'] != 'test' && $_GET['mode'] != 'practice' ) ) { $_GET['mode'] = 'practice'; } if( ! isset( $_GET['useVariableInteger'] ) && ! isset( $_GET['useVariableDouble'] ) ) { $_GET['useVariableInteger'] = 'on'; $_GET['useVariableDouble'] = 'on'; } if( ! isset( $_GET['useOperatorAdd'] ) && ! isset( $_GET['useOperatorSubtract'] ) && ! isset( $_GET['useOperatorMultiply'] ) && ! isset( $_GET['useOperatorDivide'] ) ) { $_GET['useOperatorAdd'] = 'on'; $_GET['useOperatorSubtract'] = 'on'; $_GET['useOperatorMultiply'] = 'on'; $_GET['useOperatorDivide'] = 'on'; } // FIXME this prevent do..while deadlocks below but it's not nice if( ! isset( $_GET['useVariableInteger'] ) && isset( $_GET['useVariableDouble'] ) && ! isset( $_GET['useVariableFactor'] ) && ! isset( $_GET['useOperatorAdd'] ) && ! isset( $_GET['useOperatorSubtract'] ) && isset( $_GET['useOperatorMultiply'] ) && ! isset( $_GET['useOperatorDivide'] ) && ! isset( $_GET['optimizeSolvability'] ) ) { die( 'Impossible combination to guarantee easy exercises, disable optimizeSolvability if you really want this.' ); } // Show setup? if( isset( $_GET['showSetup'] ) ) { ?> Set up exercise

In practice mode the answers are selectable on the same page and no scoring will be done. In test mode you need to click a "Finished" button and your score will be calculated.

# Questions
Term & answer sizes
Max term length	(total # of digits, including fraction)
Max term decimal length	(# of digits after ., if variable is a double)
Max answer length	(total # of digits)
Max answer decimal length	(# of digits after ., if used)
Operations
Min operations
Max operations

Variables
Integer
Double	(This includes floats)
Use negative values for variables
Operators
Add (+)
Subtract (-)
Multiply (*)
Divide (/)
Optimizations
Optimize solvability	Limits complexity in some situations.
Prevent too simple	Guarantee operator changing & no arbitragable values.

Scoring

You get one point for every correct answer. Deduct one point for each error. If you skip a question or run out of time in a timed test, all following questions are not used in your score. Time yourself to 6 seconds per question. Generally you need to pass 55 out of 80 questions or ~70% of the maximum score, but higher is always better.

Manual

The answer to the test will be printed right next to it in the site's background color. You can use CTRL+A, Command+A or use the mouse to select all text on this page.

Questions

1)	0.07 / 0.008	8.75
2)	4 / 0.008	500
3)	3 + 7302	7305
4)	88 + 432	520
5)	0.2 * 508	101.6
6)	6 - 3.9	2.1
7)	8 - 0.03	7.97
8)	9.389 + 0.1	9.489
9)	47 * 2	94
10)	0.002 + 0.03	0.032
11)	9 - 272	-263
12)	640 - -8	648
13)	2 * 9.4	18.8
14)	53 + 0.13	53.13
15)	262 - 24	238
16)	-8.3 + 9	0.7
17)	-71 - 37	-108
18)	669 + 1648	2317
19)	8 * 56	448
20)	5.95 / -5	-1.19
21)	-63 * -0.006	0.378
22)	951 + 6	957
23)	114 - 7	107
24)	0.7 / -7	-0.1
25)	904 - 556	348
26)	741 + 5	746
27)	-207 - -99	-108
28)	0.08 + 96.6	96.68
29)	2.4 - 0.464	1.936
30)	4.24 / -4	-1.06
31)	2 - 0.004	1.996
32)	4739 - -676	5415
33)	465 + 5384	5849
34)	66 - 306	-240
35)	-13 + 301	288
36)	-156 / 40	-3.9
37)	90 + 3915	4005
38)	-75 * -0.8	60
39)	0.2 + -0.7	-0.5
40)	19.6 - 5.73	13.87
41)	-0.78 + 0.3	-0.48
42)	-87 * -0.07	6.09
43)	-97 + 807	710
44)	9 - 304	-295
45)	0.15 - -5	5.15
46)	-8.3 + 9.23	0.93
47)	7 + 337	344
48)	8.76 + -0.002	8.758
49)	14.14 + 0.85	14.99
50)	0.8 + 0.08	0.88
51)	-6 * 1.22	-7.32
52)	162 - 6	156
53)	918 + 6074	6992
54)	-0.3 * 9	-2.7
55)	0.76 + 0.98	1.74
56)	377 - 76	301
57)	276 * 0.002	0.552
58)	-0.039 + 8.31	8.271
59)	776 - 568.7	207.3
60)	484 + 13	497
61)	8 * 69	552
62)	-53 + 4443	4390
63)	-36.9 - 5	-41.9
64)	7 / 0.02	350
65)	0.9 - 9.49	-8.59
66)	6065 + -5	6060
67)	526.3 - -53	579.3
68)	0.9 * -8.6	-7.74
69)	794 * 0.4	317.6
70)	-0.04 - -0.07	0.03
71)	0.54 / 3	0.18
72)	-0.6 * 9	-5.4
73)	634 - -68	702
74)	1.01 + 9	10.01
75)	3331 - 245	3086
76)	3 + 75	78
77)	0.2 - -66	66.2
78)	-0.01 - 0.5	-0.51
79)	82 + -89	-7
80)	-344 / 5	-68.8

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Test: Easy | Medium | Hard
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