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)	0.4 / -0.004	-100
2)	4 * -8	-32
3)	-7 + 230	223
4)	-0.002 + 5	4.998
5)	0.8 + 9	9.8
6)	41.6 + -71	-29.4
7)	10.85 + 32.3	43.15
8)	127 - 4.6	122.4
9)	808 / 4	202
10)	-0.06 - 0.72	-0.78
11)	636.8 + 66	702.8
12)	0.7 * 0.68	0.476
13)	3 + 6	9
14)	5 - -748	753
15)	-418 / 5	-83.6
16)	54 * 4	216
17)	0.7 + 9.71	10.41
18)	525 + 7126	7651
19)	1.3 * 7.35	9.555
20)	0.7 - 0.004	0.696
21)	8 / -25	-0.32
22)	-4439 + 6335	1896
23)	0.039 + 0.8	0.839
24)	-0.22 / 0.08	-2.75
25)	8.55 + -4	4.55
26)	1 * 27	27
27)	8 + 518	526
28)	-0.009 - -6	5.991
29)	0.4 + -9	-8.6
30)	5.55 - -8.3	13.85
31)	420 + 79	499
32)	9483 * 1	9483
33)	20 - 12	8
34)	6.71 - 2.7	4.01
35)	3.4 + 7	10.4
36)	-0.06 + 9.21	9.15
37)	0.009 * 43	0.387
38)	-109 + -697	-806
39)	-9 + 251	242
40)	77 * 4.7	361.9
41)	-0.004 + 8.8	8.796
42)	-0.01 * 5	-0.05
43)	37.7 - 5.84	31.86
44)	-0.787 + 9	8.213
45)	0.009 * 7	0.063
46)	0.9 - 8	-7.1
47)	-3317 + 9718	6401
48)	0.5 + -40	-39.5
49)	486 * 0.05	24.3
50)	14 / 0.8	17.5
51)	0.929 - 0.8	0.129
52)	4661 + 64	4725
53)	-5 + 9070	9065
54)	3 - -55	58
55)	-0.1 + 272	271.9
56)	-0.57 - 0.26	-0.83
57)	52 - 1	51
58)	41 * 13	533
59)	-922 - 49	-971
60)	149 * 0.41	61.09
61)	-482 + 4542	4060
62)	232.2 - -91	323.2
63)	-442 - -1517	1075
64)	2 + 1	3
65)	357 / 84	4.25
66)	13 - 6.69	6.31
67)	22 - 0.01	21.99
68)	0.95 - 0.05	0.9
69)	896 + 5	901
70)	-7 + 0.6	-6.4
71)	17 + -4	13
72)	829 - -0.9	829.9
73)	0.6 - 43.6	-43
74)	-0.9 + 6	5.1
75)	2 * 4.684	9.368
76)	701 + -75	626
77)	8.382 - 6	2.382
78)	912 + -3	909
79)	406 * 4	1624
80)	5 - 1	4

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