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)	-0.2 - -25	24.8
2)	0.7 - -7.067	7.767
3)	4 / -1	-4
4)	7010 + 947	7957
5)	0.37 + -0.003	0.367
6)	-0.07 + 0.641	0.571
7)	1988 / 5	397.6
8)	0.349 + -0.019	0.33
9)	459 - 590	-131
10)	6 * 81	486
11)	1 - 0.077	0.923
12)	1.24 + -8	-6.76
13)	3 + -5.8	-2.8
14)	-5 / 5	-1
15)	2980 - 1897	1083
16)	-1.3 / 0.2	-6.5
17)	-3 - 1.4	-4.4
18)	620 + 6	626
19)	6 - -0.06	6.06
20)	-48.89 + 84	35.11
21)	9.4 * 490	4606
22)	39 + 3470	3509
23)	4840 - 35	4805
24)	3 + 50	53
25)	-1 + -42	-43
26)	8 - 0.8	7.2
27)	-724 + -8	-732
28)	-87 / -0.3	290
29)	5801 - -63	5864
30)	6 * -3	-18
31)	5 + -5	0
32)	-0.12 * -0.6	0.072
33)	-5 + 219	214
34)	7 / 0.005	1400
35)	-6.24 + 18.5	12.26
36)	0.8 / 0.01	80
37)	806.2 - 516	290.2
38)	0.606 - -0.3	0.906
39)	597 * 7	4179
40)	4.91 + 0.006	4.916
41)	0.5 * 215	107.5
42)	-3.2 - 2.69	-5.89
43)	4 * -4	-16
44)	39 - -4	43
45)	6.5 * 708	4602
46)	438 + -97	341
47)	0.36 + 0.007	0.367
48)	0.4 * 8	3.2
49)	56 - -489.5	545.5
50)	0.023 * 6	0.138
51)	9 + 466	475
52)	-336 - -8	-328
53)	-1.3 / 5	-0.26
54)	-228 + 7979	7751
55)	731 + 63	794
56)	0.39 - 0.75	-0.36
57)	-0.578 - -9.46	8.882
58)	0.2 - 4.2	-4
59)	2.9 + 816	818.9
60)	5 - 0.445	4.555
61)	82 - -31	113
62)	-92.8 / -5	18.56
63)	9 - -0.005	9.005
64)	64 - 75	-11
65)	51.2 + 492	543.2
66)	9.228 - 5.61	3.618
67)	-6 + 0.06	-5.94
68)	-0.008 * -394	3.152
69)	510.1 - 126	384.1
70)	-48.9 + 1	-47.9
71)	3.328 / 0.32	10.4
72)	3.47 - 4	-0.53
73)	455 + 8471	8926
74)	56 * 8	448
75)	-37 + 1	-36
76)	0.03 + 3	3.03
77)	0.039 - -0.6	0.639
78)	9 * -0.07	-0.63
79)	0.052 + -0.05	0.002
80)	34 * 62	2108

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