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)	19 - -9.7	28.7
2)	-3 * 314	-942
3)	0.03 + 0.6	0.63
4)	0.1 - -0.753	0.853
5)	-529 - 452	-981
6)	0.81 + -0.85	-0.04
7)	-3 * -18	54
8)	0.009 + 1	1.009
9)	-412 - 4	-416
10)	830 / 0.1	8300
11)	-9 * -0.072	0.648
12)	0.045 + 0.248	0.293
13)	1 - 0.7	0.3
14)	0.005 + 8.5	8.505
15)	79 - 60	19
16)	-0.094 / -0.001	94
17)	2 + 16	18
18)	4.8 - -3.599	8.399
19)	4282 + 466	4748
20)	9.574 + -7.9	1.674
21)	-832 / -64	13
22)	-0.08 * -7	0.56
23)	0.01 / 0.02	0.5
24)	0.03 * 13.4	0.402
25)	22 + 0.21	22.21
26)	-770 - -466	-304
27)	268 - -3032	3300
28)	7.5 + 0.008	7.508
29)	-108 / -20	5.4
30)	3 + 89	92
31)	570 / 20	28.5
32)	0.5 * -0.22	-0.11
33)	2.674 + 0.06	2.734
34)	-979 - 6	-985
35)	-0.09 - 3.4	-3.49
36)	83 - 584	-501
37)	55.7 - -0.2	55.9
38)	8 * 4	32
39)	1.58 / 0.004	395
40)	5540 + 189	5729
41)	-0.4 * 4	-1.6
42)	-71 - -94	23
43)	-0.5 + 0.6	0.1
44)	-262 - -7	-255
45)	1 - -3	4
46)	937.9 + 55	992.9
47)	53.9 + 0.1	54
48)	5.6 + 7	12.6
49)	0.19 + -6.92	-6.73
50)	762 - 2.7	759.3
51)	626 + -43	583
52)	29.2 - 20	9.2
53)	-1 - 1	-2
54)	0.003 * 4360	13.08
55)	0.1 * 46	4.6
56)	2 + 34.5	36.5
57)	4664 - 19	4645
58)	-6 + 4	-2
59)	-75 * 7	-525
60)	200 - 87	113
61)	-0.1 + 5.3	5.2
62)	886 + -48	838
63)	8 * -3	-24
64)	0.3 + 973	973.3
65)	2 * 81	162
66)	2710 + 6905	9615
67)	88 + 7153	7241
68)	2218 * 3	6654
69)	8264 + 8	8272
70)	14.19 - 5	9.19
71)	4.6 - -40	44.6
72)	0.069 + -0.01	0.059
73)	0.04 + 0.003	0.043
74)	-0.8 - 89	-89.8
75)	3 + 0.9	3.9
76)	658 - 926	-268
77)	0.6 - -86.4	87
78)	4971 + 840	5811
79)	7.53 - 0.73	6.8
80)	7.512 + -0.01	7.502

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Test: Easy | Medium | Hard
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