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)	6781 - 6	6775
2)	9 * -2	-18
3)	227 + 90	317
4)	4 + 7.89	11.89
5)	7 + 2.4	9.4
6)	-711 + -5	-716
7)	-201 / 15	-13.4
8)	3 - 2.839	0.161
9)	37.6 / -2	-18.8
10)	3677 - 810	2867
11)	1.89 - 0.06	1.83
12)	35 * -2	-70
13)	97 + 567	664
14)	6.3 * 86	541.8
15)	-393 + 797	404
16)	5 + 7	12
17)	0.212 - -3.8	4.012
18)	71 + -0.01	70.99
19)	0.74 - 0.036	0.704
20)	0.33 * 21.2	6.996
21)	-0.009 - -0.9	0.891
22)	96.9 - 47	49.9
23)	3 - 444	-441
24)	0.02 - 1	-0.98
25)	34.8 * 5	174
26)	0.17 - -3	3.17
27)	0.4 - 36.4	-36
28)	-34 + 3.5	-30.5
29)	4 * 0.9	3.6
30)	-73 - 3	-76
31)	8125 - 4826	3299
32)	40 - 0.02	39.98
33)	9.3 + 732.3	741.6
34)	3945 + 6	3951
35)	0.09 + -9	-8.91
36)	11 - -73	84
37)	-5 - 979	-984
38)	0.04 * -62	-2.48
39)	-0.035 + 6	5.965
40)	860 - 6	854
41)	-67 + 723.9	656.9
42)	1 - -9	10
43)	-200 * -1	200
44)	33 - 26	7
45)	0.91 + 20	20.91
46)	0.2 - 33	-32.8
47)	914 - 0.6	913.4
48)	0.002 * 2	0.004
49)	-5 - 9	-14
50)	0.446 - -0.04	0.486
51)	1 + -44	-43
52)	4284 / 4	1071
53)	0.2 + -5	-4.8
54)	-79 - 8	-87
55)	-8 + -49.2	-57.2
56)	-9 - -975	966
57)	742 + -3	739
58)	7 * 0.4	2.8
59)	720.2 + 489.8	1210
60)	0.1 / 0.05	2
61)	5513 - -1	5514
62)	74.51 + -2	72.51
63)	6.42 + 59.1	65.52
64)	9 - 77.4	-68.4
65)	0.008 + 5.363	5.371
66)	-1 - 8.84	-9.84
67)	8.7 + 437.8	446.5
68)	175 - 1	174
69)	8 + 53	61
70)	9.11 - -4	13.11
71)	498 + 0.4	498.4
72)	0.855 - -7	7.855
73)	56 + 808	864
74)	3097 - 470	2627
75)	9 + -628	-619
76)	1.096 - -0.002	1.098
77)	14 + 4039	4053
78)	-1 - 6	-7
79)	-0.25 * 0.8	-0.2
80)	11.34 - 7	4.34

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Test: Easy | Medium | Hard
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