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)	9367 / 1	9367
2)	6.8 * 32	217.6
3)	8 * 9	72
4)	-51 - 85	-136
5)	5 * 7.6	38
6)	9 - -9135	9144
7)	0.09 - -16.11	16.2
8)	4 * 0.8	3.2
9)	-0.92 * 5	-4.6
10)	2.8 + 4.5	7.3
11)	-0.3 * -2	0.6
12)	-0.08 * -880	70.4
13)	9237 + 99	9336
14)	3 - 5	-2
15)	0.6 * 2.8	1.68
16)	7285 - 8	7277
17)	1 + 9.3	10.3
18)	0.869 + -0.006	0.863
19)	-4 + -0.07	-4.07
20)	-8 + 39	31
21)	-8337 / -35	238.2
22)	76 + 0.05	76.05
23)	0.008 * -20	-0.16
24)	8391 - 9241	-850
25)	9 * 0.003	0.027
26)	0.768 - 0.009	0.759
27)	131 + -4.3	126.7
28)	1 - -0.04	1.04
29)	75.7 * 0.4	30.28
30)	7 - 57	-50
31)	0.003 * 4	0.012
32)	-0.6 - 7	-7.6
33)	20 * 41	820
34)	3 - -81	84
35)	-5 * 84	-420
36)	0.2 - 0.006	0.194
37)	80.37 + -0.06	80.31
38)	-0.8 / 0.008	-100
39)	59 + 0.8	59.8
40)	-22 - 97	-119
41)	-5 * 0.04	-0.2
42)	8 * 0.006	0.048
43)	-76 - -90	14
44)	8.7 - -20.4	29.1
45)	339 - 94	245
46)	4414 - 68	4346
47)	-5.61 + -2.2	-7.81
48)	5.4 - 8.2	-2.8
49)	79 + 7	86
50)	2.4 + -0.016	2.384
51)	730 * -0.012	-8.76
52)	4.87 + 4	8.87
53)	-0.024 + 2	1.976
54)	6216 - 5127	1089
55)	2 - 1.65	0.35
56)	-9 * 5.7	-51.3
57)	99 * 1	99
58)	-0.08 - 8	-8.08
59)	54.48 / 0.3	181.6
60)	4930 + -96	4834
61)	308 + 4133	4441
62)	-5 + 7.26	2.26
63)	-49 * -0.085	4.165
64)	-9 + 8	-1
65)	0.002 - -0.054	0.056
66)	-8 + 9	1
67)	90 + 0.3	90.3
68)	0.273 / -0.7	-0.39
69)	-2 * 73	-146
70)	328 * 6	1968
71)	119 - -8	127
72)	44 - -72.3	116.3
73)	-8.4 + 57	48.6
74)	689 + -44	645
75)	732.3 + 34	766.3
76)	74.15 + 2.27	76.42
77)	8 + 594	602
78)	70 - 9	61
79)	-348 + 69	-279
80)	5 + -7	-2

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Test: Easy | Medium | Hard
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