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 - -177	168
2)	-0.7 + -1	-1.7
3)	6 - 0.937	5.063
4)	-1.3 * 7	-9.1
5)	5 + -21.1	-16.1
6)	-41 + -49	-90
7)	2.29 - -0.7	2.99
8)	8036 + 522	8558
9)	6 + 51	57
10)	98 - -288.6	386.6
11)	902 + -635.2	266.8
12)	46 + 71	117
13)	0.3 + 78	78.3
14)	1 * 21	21
15)	-97 - -80	-17
16)	6281 + 2	6283
17)	9997 + -2	9995
18)	9.1 - 90	-80.9
19)	0.27 + 18	18.27
20)	89 + 53	142
21)	-5 / 5	-1
22)	85 - 0.79	84.21
23)	-0.02 + -9	-9.02
24)	3 * -42	-126
25)	256 * 31	7936
26)	-8.7 - 0.65	-9.35
27)	1 + -517	-516
28)	-0.075 + 2	1.925
29)	4 + -4	0
30)	-229 + -74	-303
31)	0.4 * 867	346.8
32)	5 + 59	64
33)	0.6 / 6	0.1
34)	1735 * 0.05	86.75
35)	-64 - -80.88	16.88
36)	-22.4 + 0.7	-21.7
37)	-0.3 + -82.5	-82.8
38)	-15 - 2.2	-17.2
39)	4289 + 86	4375
40)	311 - 170	141
41)	7 * 0.073	0.511
42)	-297 - 272	-569
43)	93 / 31	3
44)	-52 + 5335	5283
45)	765 - 2.9	762.1
46)	0.001 + 0.009	0.01
47)	1.5 * -294	-441
48)	-0.28 + 3	2.72
49)	0.7 - -0.58	1.28
50)	0.4 + 0.67	1.07
51)	5210 * 0.4	2084
52)	89 + 178	267
53)	115 - 3.3	111.7
54)	7 - -88	95
55)	6.627 + 3.12	9.747
56)	22 / 4	5.5
57)	-0.08 - 5.45	-5.53
58)	585 - 516.3	68.7
59)	0.3 * 590	177
60)	4042 + 4218	8260
61)	15 - 3	12
62)	-0.727 + 8	7.273
63)	3562 - 7	3555
64)	6 + 559	565
65)	7 * 1	7
66)	-0.05 - -0.3	0.25
67)	0.417 + -0.2	0.217
68)	103 + 84	187
69)	2.6 - -2.9	5.5
70)	8 * 2	16
71)	0.78 / 78	0.01
72)	0.2 + -34	-33.8
73)	-419 - -1778	1359
74)	0.01 * 0.9	0.009
75)	82 * 8	656
76)	-37 - 341	-378
77)	8 * 3.4	27.2
78)	4 - 93	-89
79)	0.1 + 0.87	0.97
80)	-22 - 58.1	-80.1

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Test: Easy | Medium | Hard
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