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)	35 - -1	36
2)	0.009 * 6	0.054
3)	0.3 + 0.502	0.802
4)	0.05 - 7	-6.95
5)	-84 * 3	-252
6)	-0.1 - 4	-4.1
7)	4 / 0.02	200
8)	-0.007 * 60	-0.42
9)	-33 - 0.4	-33.4
10)	27 - -57.95	84.95
11)	27 + 176	203
12)	3 + 933	936
13)	8 * -81	-648
14)	0.022 + 0.01	0.032
15)	81.31 - 5.4	75.91
16)	8 * 60.55	484.4
17)	0.001 + 3.691	3.692
18)	2 - 226	-224
19)	1 + 99.4	100.4
20)	9746 + -89	9657
21)	-0.06 - 8	-8.06
22)	0.05 / -5	-0.01
23)	724 * 0.4	289.6
24)	42 - -18	60
25)	85.5 + 9.2	94.7
26)	3108 - -6	3114
27)	-83 / 2	-41.5
28)	3257 - 450	2807
29)	2 - 4.4	-2.4
30)	3222 + 1447	4669
31)	-15 - 53	-68
32)	3.4 + 203.1	206.5
33)	633.4 - 625	8.4
34)	3 - 0.005	2.995
35)	1324 + -507	817
36)	-172 - 227	-399
37)	8 - -35	43
38)	22 + 2	24
39)	96 - -62.1	158.1
40)	1773 - 98	1675
41)	-0.36 * 6	-2.16
42)	3.66 * 1	3.66
43)	-4.31 - 4	-8.31
44)	-6 + 7.35	1.35
45)	0.2 - -2.88	3.08
46)	0.6 + 0.1	0.7
47)	-4 * 0.17	-0.68
48)	8 - 0.06	7.94
49)	-0.041 + 0.7	0.659
50)	-104 + -245	-349
51)	241 - 3	238
52)	820 - 36	784
53)	4 * 67	268
54)	3 - -1011	1014
55)	22.82 + 5.64	28.46
56)	-651 + 440	-211
57)	50 / -0.8	-62.5
58)	0.01 - 6	-5.99
59)	526 * 9	4734
60)	1.3 + 167	168.3
61)	-337 - 612	-949
62)	-36 + 1	-35
63)	246.4 + -270	-23.6
64)	15 * 0.008	0.12
65)	59.81 + 13	72.81
66)	0.1 + 22	22.1
67)	2 + 0.687	2.687
68)	-5 + 19.27	14.27
69)	0.001 - -3	3.001
70)	-938 + 32	-906
71)	-0.019 + 3.1	3.081
72)	4.2 / 0.8	5.25
73)	-21.6 - 77.3	-98.9
74)	35 + 6311	6346
75)	25.6 + 5.49	31.09
76)	1 - 6	-5
77)	0.001 + 0.002	0.003
78)	-1 * 389	-389
79)	65 - 9	56
80)	25 + -0.5	24.5

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Test: Easy | Medium | Hard
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