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)	-9 + 29	20
2)	0.006 * 7	0.042
3)	0.02 + 0.4	0.42
4)	350 / 28	12.5
5)	-42 * 0.4	-16.8
6)	-0.012 + 6	5.988
7)	1 + 0.629	1.629
8)	662 - -8	670
9)	-46.9 + -52	-98.9
10)	-0.18 + 2	1.82
11)	-48.9 + 0.6	-48.3
12)	-0.7 - -0.1	-0.6
13)	572 * 0.008	4.576
14)	-0.322 * -7.5	2.415
15)	-0.716 + 3.904	3.188
16)	39 + 4662	4701
17)	5734 + 661	6395
18)	-49 - 1.3	-50.3
19)	89.2 - -41	130.2
20)	29 + 3	32
21)	9 - 671	-662
22)	8.85 + 0.2	9.05
23)	303 + 6	309
24)	-9 - 6	-15
25)	-0.5 * 67	-33.5
26)	-6 + -949	-955
27)	18 + -78.4	-60.4
28)	-9.1 - -449	439.9
29)	-9 + 1	-8
30)	8.769 - 0.02	8.749
31)	453 + 7.8	460.8
32)	-0.4 * 35	-14
33)	0.705 - 0.22	0.485
34)	-76 + 95	19
35)	20.4 * 3.25	66.3
36)	75 - -1.4	76.4
37)	5.3 / 50	0.106
38)	0.1 * 32	3.2
39)	0.02 + -2.9	-2.88
40)	-72 - -0.4	-71.6
41)	0.221 - -0.003	0.224
42)	3564 + -1505	2059
43)	882 * 7	6174
44)	-14 + -394	-408
45)	-316 / -0.16	1975
46)	0.098 + -0.009	0.089
47)	-2 / 1	-2
48)	-8 + 345	337
49)	471 * 0.09	42.39
50)	0.172 + 4	4.172
51)	71 - 5	66
52)	20 - -6871	6891
53)	2 + 6.9	8.9
54)	-0.69 - -0.72	0.03
55)	0.27 + -0.007	0.263
56)	0.006 * 4	0.024
57)	702 - -763	1465
58)	0.76 + 0.57	1.33
59)	0.008 - 0.002	0.006
60)	86 * 8	688
61)	47 + 8	55
62)	-13 - 0.4	-13.4
63)	12 * 5	60
64)	90 - 3	87
65)	3 - 0.069	2.931
66)	64 + 5	69
67)	1 - 662	-661
68)	-0.006 + 0.4	0.394
69)	0.298 * 4	1.192
70)	-0.003 - -7	6.997
71)	3524 * 1.5	5286
72)	0.453 + 7.2	7.653
73)	4 - -27	31
74)	5 - 21	-16
75)	0.006 + 0.005	0.011
76)	65.6 - 5	60.6
77)	-55 / -0.5	110
78)	2 + -6	-4
79)	5 * 0.4	2
80)	-37 - -2417	2380

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