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)	3.76 - -38	41.76
2)	-16 + 171	155
3)	-6 / 0.05	-120
4)	-8 * -9.9	79.2
5)	-5.4 + 9.88	4.48
6)	-8 - -8.79	0.79
7)	5.6 + -0.876	4.724
8)	-26 + -6.9	-32.9
9)	7078 - 666	6412
10)	2.1 / 30	0.07
11)	55 / 8	6.875
12)	79.4 - 172	-92.6
13)	-3 - 646	-649
14)	1 + 99	100
15)	0.008 / -0.2	-0.04
16)	5 + -831	-826
17)	-2.64 + 24.6	21.96
18)	6841 - 3	6838
19)	-25 + 71	46
20)	7 - 0.003	6.997
21)	713 - 331	382
22)	-0.07 - 0.22	-0.29
23)	9 * 879	7911
24)	51 - 9	42
25)	0.006 * 230	1.38
26)	83.5 + 8	91.5
27)	21.9 + 372	393.9
28)	-204 * -16	3264
29)	7.794 - 5	2.794
30)	5 * 8	40
31)	2 / 1	2
32)	0.1 + 952.7	952.8
33)	2 - -887	889
34)	-0.05 * -5	0.25
35)	4.12 - 0.08	4.04
36)	7385 - -606	7991
37)	0.05 * 7	0.35
38)	0.98 - -82	82.98
39)	2826 + -3	2823
40)	-7 - -29	22
41)	1365 + 1935	3300
42)	0.3 - -0.02	0.32
43)	-1.4 + 4	2.6
44)	58 + 971	1029
45)	-3 + 9	6
46)	-7 * 33	-231
47)	-7003 + 7875	872
48)	5 - 4.835	0.165
49)	0.8 * 27	21.6
50)	0.63 + -3.99	-3.36
51)	2 - -576.9	578.9
52)	9 * 4	36
53)	0.2 * -6.7	-1.34
54)	-0.07 + -2	-2.07
55)	9253 + -96	9157
56)	6666 - -292	6958
57)	0.79 + 3	3.79
58)	6870 * 0.5	3435
59)	2.6 * 7.1	18.46
60)	5.394 + 0.004	5.398
61)	0.48 / -0.04	-12
62)	-1 + 1.601	0.601
63)	47 - -0.6	47.6
64)	0.03 + -2	-1.97
65)	32.93 - -6	38.93
66)	6932 + 4	6936
67)	50 + -9	41
68)	-6.17 - 0.21	-6.38
69)	55 * 64.2	3531
70)	-3.8 + 8	4.2
71)	15 * 0.036	0.54
72)	3 - 201	-198
73)	874 - -0.8	874.8
74)	78.4 - 18.88	59.52
75)	3088 + -95	2993
76)	3 * 717	2151
77)	89 + -5	84
78)	0.068 - -3	3.068
79)	744 + 0.8	744.8
80)	4551 + 40	4591

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Test: Easy | Medium | Hard
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