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)	-9 / 2	-4.5
2)	-18 + 79	61
3)	5348 / -955	-5.6
4)	-7 + 2878	2871
5)	72 * -9	-648
6)	9.013 + -5	4.013
7)	-0.67 - 5.39	-6.06
8)	19.66 / 0.005	3932
9)	0.55 + 61	61.55
10)	389 - -552	941
11)	794 + -8	786
12)	2 * 0.008	0.016
13)	807 - -145	952
14)	-0.047 + 0.2	0.153
15)	-1 - 86.8	-87.8
16)	3 * 263.2	789.6
17)	0.05 + 55	55.05
18)	1.9 - -68.96	70.86
19)	-7 / 4	-1.75
20)	3.745 - -0.5	4.245
21)	0.498 + -0.28	0.218
22)	-973 + 112	-861
23)	4 * 2.13	8.52
24)	99 - 7	92
25)	73 * 9	657
26)	0.01 * -143	-1.43
27)	4.2 - -0.033	4.233
28)	-69 * -4	276
29)	69 - 0.04	68.96
30)	464 + 91	555
31)	-7 * 24	-168
32)	-10.7 + 77.33	66.63
33)	-0.9 - 25	-25.9
34)	-77 * 2	-154
35)	29 + 3036	3065
36)	882 / 6	147
37)	1 + 8	9
38)	4320 / 0.6	7200
39)	9 * 0.308	2.772
40)	-20.8 - 5	-25.8
41)	7 * -69	-483
42)	-2 - -0.85	-1.15
43)	0.3 + 43.12	43.42
44)	9 / -2	-4.5
45)	5.7 * 6	34.2
46)	0.9 + 72	72.9
47)	5 / 0.002	2500
48)	9204 - -404	9608
49)	2 + 5	7
50)	-7.75 * 0.08	-0.62
51)	0.565 + 7.27	7.835
52)	6 / 0.003	2000
53)	6542 * 0.15	981.3
54)	5.8 - 0.5	5.3
55)	49 + -338	-289
56)	-8 + 20	12
57)	0.003 * 802	2.406
58)	8177 - -503	8680
59)	-43 * -8	344
60)	0.098 + 9.368	9.466
61)	9.8 - -8	17.8
62)	-6.6 / 44	-0.15
63)	-3 * 7	-21
64)	0.109 + 5	5.109
65)	0.86 - -9.97	10.83
66)	6 + -0.645	5.355
67)	9.51 + 48	57.51
68)	7518 - 71	7447
69)	0.8 + -2.99	-2.19
70)	6 * 50	300
71)	61 - 433	-372
72)	86 + 5019	5105
73)	84 + 2	86
74)	4 * 9.28	37.12
75)	0.005 * 0.8	0.004
76)	0.04 + 16	16.04
77)	0.9 + 77	77.9
78)	58 - -4	62
79)	6.84 - -0.08	6.92
80)	0.2 - -33	33.2

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Test: Easy | Medium | Hard
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