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)	21 - -0.01	21.01
2)	98.9 + -97.1	1.8
3)	-2 + -995	-997
4)	164 - 235	-71
5)	-97 + 998	901
6)	-40 * 6.5	-260
7)	645 / 25	25.8
8)	-274 + 21	-253
9)	79 + 5	84
10)	0.09 * 31.1	2.799
11)	728.1 + -340	388.1
12)	1 - -0.33	1.33
13)	7 - 0.71	6.29
14)	2 * 814	1628
15)	-3 / 5	-0.6
16)	-0.077 + 6	5.923
17)	636 - -22.1	658.1
18)	0.057 / 0.1	0.57
19)	5 + -4	1
20)	439 - 767	-328
21)	-5 - 168	-173
22)	-4 + 875	871
23)	7.56 - -0.1	7.66
24)	7 + -9	-2
25)	0.06 - 0.63	-0.57
26)	-0.8 + 377	376.2
27)	0.2 - 70	-69.8
28)	7 * 82	574
29)	4 + 3	7
30)	-0.19 / 0.2	-0.95
31)	0.1 * 88.87	8.887
32)	-53 - 33	-86
33)	-0.7 * 0.8	-0.56
34)	58 - -7647	7705
35)	0.79 + 0.001	0.791
36)	5 * 6	30
37)	0.01 * 57	0.57
38)	-32 / 25	-1.28
39)	35 + 755	790
40)	-54 * -5	270
41)	-40 + 749.6	709.6
42)	-0.8 - 2.01	-2.81
43)	7860 + -385	7475
44)	5 - 17	-12
45)	3 - -5.1	8.1
46)	87.7 + 29	116.7
47)	228.5 - 0.4	228.1
48)	328 + 5884	6212
49)	0.452 + 1	1.452
50)	0.009 + 7.3	7.309
51)	4 - -0.83	4.83
52)	-0.02 + 9	8.98
53)	895 + 824	1719
54)	5591 - 624	4967
55)	83 - -94	177
56)	2.6 + 76.42	79.02
57)	-50 - -4.1	-45.9
58)	-706 + 6	-700
59)	0.26 / -0.4	-0.65
60)	-606 + 6310	5704
61)	9544 - 462	9082
62)	-95 + 88	-7
63)	3 * 1	3
64)	0.049 + 0.006	0.055
65)	0.01 + 5	5.01
66)	74 + 55	129
67)	-235 - -5	-230
68)	780 - 78	702
69)	-34 + 113	79
70)	0.7 - -0.499	1.199
71)	510 + -8	502
72)	-770 + 7	-763
73)	9 - 5.724	3.276
74)	0.1 + 4.09	4.19
75)	38.59 - -7	45.59
76)	-0.6 / 3	-0.2
77)	-57 * 0.2	-11.4
78)	1.9 * 20	38
79)	4.043 - 0.001	4.042
80)	-5 + 97	92

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