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)	0.5 - 0.9	-0.4
2)	6 / 0.6	10
3)	0.4 - -600	600.4
4)	10 * -8	-80
5)	0.8 - -5	5.8
6)	3.6 / 2.5	1.44
7)	74 + 31	105
8)	304 + -89	215
9)	4742 - 7	4735
10)	1.4 + -0.6	0.8
11)	0.365 - -0.85	1.215
12)	1 + 7	8
13)	868 - 243	625
14)	58 * 0.089	5.162
15)	2 + -6	-4
16)	90 - 46.29	43.71
17)	8 + -3	5
18)	605 - 83	522
19)	-99.9 + 4	-95.9
20)	1671 + 46	1717
21)	5 * 0.005	0.025
22)	8538 + 315	8853
23)	-3 - 604	-607
24)	-5 * -0.928	4.64
25)	0.04 / -0.1	-0.4
26)	0.01 * 136	1.36
27)	-19.9 + 0.4	-19.5
28)	0.477 + 0.84	1.317
29)	-41 + 9.9	-31.1
30)	63 + 0.99	63.99
31)	-2 / -0.04	50
32)	-77 + 0.7	-76.3
33)	9920 - 870	9050
34)	2 + 6367	6369
35)	87 + 8164	8251
36)	0.003 + 0.057	0.06
37)	8757 - 372	8385
38)	787 + 9	796
39)	78 - -777.1	855.1
40)	-0.21 + -5.56	-5.77
41)	-6 / 3	-2
42)	8 / -5	-1.6
43)	802 - -0.3	802.3
44)	2 + 8.31	10.31
45)	-0.85 * 6.4	-5.44
46)	1.7 * -70	-119
47)	0.4 + 164	164.4
48)	96.62 - -0.91	97.53
49)	7 - -58.6	65.6
50)	3.2 * 1290	4128
51)	5 + 0.3	5.3
52)	0.571 / -0.001	-571
53)	0.7 + -0.03	0.67
54)	557 + -2	555
55)	-0.987 - -2	1.013
56)	-33.7 - -68.6	34.9
57)	-0.2 * 266	-53.2
58)	4 + 21.98	25.98
59)	42 - 9	33
60)	0.062 / -0.04	-1.55
61)	5 + 183	188
62)	750 * 0.091	68.25
63)	-2.71 + 4.402	1.692
64)	6 - 9	-3
65)	-9 * -678	6102
66)	4 * 43	172
67)	-54 + 4649	4595
68)	0.5 - 26	-25.5
69)	9 * 63	567
70)	6 - -0.61	6.61
71)	-99 - -1	-98
72)	-0.093 / 0.01	-9.3
73)	-8.675 - -14	5.325
74)	3916 + -3164	752
75)	-9 - 538	-547
76)	3 + 0.06	3.06
77)	4 + 8.81	12.81
78)	44 + 770	814
79)	1 * 51.2	51.2
80)	-0.008 / -0.01	0.8

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