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)	-0.7 - -0.887	0.187
2)	-558 - 32	-590
3)	8.8 * 5	44
4)	5 / 0.4	12.5
5)	8 + 56.4	64.4
6)	-5752 - -6473	721
7)	-593 - 7	-600
8)	1 - 756	-755
9)	85.1 - 1	84.1
10)	4 * 2	8
11)	292 - -30	322
12)	4645 - 4	4641
13)	5.8 * 0.8	4.64
14)	8 + 0.68	8.68
15)	-2.45 - 0.91	-3.36
16)	634 / 5	126.8
17)	78.2 + 0.5	78.7
18)	534 * 0.2	106.8
19)	4 - -93	97
20)	3602 - -3931	7533
21)	8.08 * 9	72.72
22)	4293 + 896	5189
23)	83.9 * 0.3	25.17
24)	0.8 + -6.65	-5.85
25)	9 * -43	-387
26)	0.91 * 8	7.28
27)	761 + 66	827
28)	-8 + 0.2	-7.8
29)	-0.35 + 9.6	9.25
30)	106 - -87	193
31)	-1.23 + -2.5	-3.73
32)	41 * 0.09	3.69
33)	7 + -44	-37
34)	12 - -437	449
35)	-9 + 527	518
36)	-1.792 - -6	4.208
37)	7 - -60	67
38)	0.024 + 6	6.024
39)	29 - 9	20
40)	625 - 687	-62
41)	-57 - 11	-68
42)	709 * 7	4963
43)	-5 * 7	-35
44)	0.08 - -0.05	0.13
45)	-3.7 + 1.8	-1.9
46)	75.02 + -0.1	74.92
47)	688 - 8	680
48)	88.5 + -4.32	84.18
49)	13 + 7257	7270
50)	-6 - 53	-59
51)	6.9 * -2	-13.8
52)	-31.1 * -21	653.1
53)	0.08 - -3.586	3.666
54)	-9 + 132.9	123.9
55)	4 - -56	60
56)	9718 + -1889	7829
57)	0.049 + 0.5	0.549
58)	5.54 - 0.5	5.04
59)	746 - 5	741
60)	10 * -0.005	-0.05
61)	1.571 + 1.7	3.271
62)	2 - -7	9
63)	6 - 0.001	5.999
64)	90 * 0.056	5.04
65)	-8 + 64	56
66)	285 + -2	283
67)	842 + 13.6	855.6
68)	2079 - -880	2959
69)	8.38 + 0.4	8.78
70)	47 - 0.54	46.46
71)	0.005 + 1.728	1.733
72)	4 + -0.9	3.1
73)	-5 + 53	48
74)	-7 - -0.6	-6.4
75)	920 - 51	869
76)	0.7 * 74	51.8
77)	41 / 4	10.25
78)	4 - 388	-384
79)	0.968 - -2.87	3.838
80)	7587 + 1	7588

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