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)	91.5 - 0.55	90.95
2)	-2.6 + 78.78	76.18
3)	4 * 1.56	6.24
4)	8 * 841	6728
5)	1 + 0.1	1.1
6)	0.003 - -0.6	0.603
7)	-0.9 - -85	84.1
8)	87.09 + 0.04	87.13
9)	0.766 * 6	4.596
10)	0.004 * 33	0.132
11)	66 - 5	61
12)	89 - 3	86
13)	-5.56 + 0.09	-5.47
14)	-781 - -106	-675
15)	6 + 820	826
16)	0.8 * 3	2.4
17)	-72 / 45	-1.6
18)	-8 * 4	-32
19)	-97 + -0.2	-97.2
20)	-8 - -0.3	-7.7
21)	-72 + 327	255
22)	81 * 78	6318
23)	225 - -490	715
24)	657 + 73	730
25)	1.903 + 5	6.903
26)	204 * 7	1428
27)	7 * -50	-350
28)	6 - 2.9	3.1
29)	27 * 7	189
30)	3060 * 0.05	153
31)	-1 + -5.34	-6.34
32)	4 - 1	3
33)	8 * 0.006	0.048
34)	-60 + 386	326
35)	377 - 70	307
36)	-744 - -8	-736
37)	840 * -0.007	-5.88
38)	0.44 + 24	24.44
39)	170 * -2.7	-459
40)	2592 + 47	2639
41)	4 * 78	312
42)	-0.074 + 8	7.926
43)	0.469 - -2	2.469
44)	61 + -569	-508
45)	4.14 + 5	9.14
46)	881 + -78.2	802.8
47)	-302 + -93	-395
48)	4 + 19	23
49)	223 - 718	-495
50)	-8300 * -0.066	547.8
51)	71.3 + -4	67.3
52)	1.7 - 0.181	1.519
53)	2.4 - -0.065	2.465
54)	47.7 + 872	919.7
55)	4 * 92	368
56)	124.7 + -0.5	124.2
57)	0.08 + 46	46.08
58)	13 * -3	-39
59)	-9.91 - -7	-2.91
60)	92 + 561	653
61)	-12 - 95	-107
62)	-336 * -5	1680
63)	9 + -331	-322
64)	4.22 * 1.6	6.752
65)	10 * 0.007	0.07
66)	-0.08 + 76.2	76.12
67)	-6.1 - -496.3	490.2
68)	8.016 - 2	6.016
69)	-65 + 5.4	-59.6
70)	58.6 * 0.005	0.293
71)	85 - 4	81
72)	7.4 - -9	16.4
73)	168 - 70	98
74)	865 + -69	796
75)	547 + 55	602
76)	-99 + 80	-19
77)	-8 - 107	-115
78)	-0.05 + 0.6	0.55
79)	8 * -9.6	-76.8
80)	14.4 + 865	879.4

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