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)	0.09 + 9	9.09
2)	2.07 - -0.002	2.072
3)	2 * -7	-14
4)	0.063 + 0.372	0.435
5)	-2 / -0.005	400
6)	7.651 - 2	5.651
7)	-3 + -0.53	-3.53
8)	82 + -33	49
9)	-30 * 0.002	-0.06
10)	-70.5 - -919	848.5
11)	3 + 923.3	926.3
12)	-0.008 * -9	0.072
13)	696 + -1423	-727
14)	-0.3 - 3.2	-3.5
15)	108 / -1	-108
16)	-6 * -0.068	0.408
17)	0.4 * 7.3	2.92
18)	-0.6 * 7.6	-4.56
19)	3.2 - 0.03	3.17
20)	0.09 - 5	-4.91
21)	-0.065 + 0.5	0.435
22)	2 + -6	-4
23)	1651 + 50	1701
24)	0.6 * 0.78	0.468
25)	968 / 4	242
26)	6 + 99	105
27)	7.5 - 4.9	2.6
28)	66 + 894	960
29)	-1660 / -2	830
30)	0.9 + 0.06	0.96
31)	84 - -1800	1884
32)	47 + -3.85	43.15
33)	0.3 + 72	72.3
34)	6 - -40	46
35)	-720 - 9	-729
36)	-0.067 * -57	3.819
37)	75.15 / 0.01	7515
38)	470.2 - 278	192.2
39)	0.03 - 0.005	0.025
40)	5 * -0.062	-0.31
41)	2.2 + 0.872	3.072
42)	6.3 + 0.995	7.295
43)	0.006 * 4	0.024
44)	18 + -2	16
45)	3 - 0.008	2.992
46)	0.06 * 677	40.62
47)	852 * 3	2556
48)	-7 + 393.5	386.5
49)	801 + 9.2	810.2
50)	3305 - -5	3310
51)	-9 - -546	537
52)	-7.48 * 5	-37.4
53)	-57 + 70	13
54)	38 - -0.8	38.8
55)	-20 + -62	-82
56)	0.021 / -0.007	-3
57)	16 * 403	6448
58)	7 * -14	-98
59)	-1 + -98	-99
60)	1 + -0.146	0.854
61)	7.5 - 56	-48.5
62)	-8.72 - 0.24	-8.96
63)	-0.9 + 0.08	-0.82
64)	4.85 + 4	8.85
65)	195 / 5	39
66)	-5 - 6	-11
67)	5 + 496.1	501.1
68)	44 + 28	72
69)	932 + 0.9	932.9
70)	403 - 0.7	402.3
71)	0.86 * -2	-1.72
72)	-2 - -79	77
73)	66 + -63.6	2.4
74)	6 + -0.05	5.95
75)	15.5 + 65.61	81.11
76)	71 * 18	1278
77)	-4 + 7787	7783
78)	1 + 6	7
79)	175.9 - -72.4	248.3
80)	5 - -24	29

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