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)	-4.6 * 12	-55.2
2)	951 - 5	946
3)	-0.9 + -1	-1.9
4)	12 * 186	2232
5)	3 + 0.008	3.008
6)	-8.33 - -1.1	-7.23
7)	91.5 - 60.93	30.57
8)	8.78 - -45.3	54.08
9)	-4 - -3215	3211
10)	678 - 0.8	677.2
11)	3 + 2	5
12)	36 * 0.78	28.08
13)	48 + -242	-194
14)	0.001 * 9832	9.832
15)	0.02 * 0.05	0.001
16)	-45 * -25	1125
17)	0.001 * 63	0.063
18)	-7 / 2	-3.5
19)	0.4 - -43.57	43.97
20)	-0.2 * -7	1.4
21)	790 + 933	1723
22)	-5 + 943	938
23)	39 - 2	37
24)	308 * 3	924
25)	3 - -86	89
26)	939 / 3	313
27)	456 + 556	1012
28)	-652 - -58	-594
29)	0.36 + 4.74	5.1
30)	2 * 0.104	0.208
31)	-7 - 0.25	-7.25
32)	-8 + 4	-4
33)	7.5 - -65.8	73.3
34)	-612 / -0.2	3060
35)	-3 + 0.2	-2.8
36)	0.04 - 0.008	0.032
37)	5693 + 603	6296
38)	448 - 66.2	381.8
39)	26 - 346	-320
40)	-0.41 + -3.8	-4.21
41)	16 * 1	16
42)	7 - -0.4	7.4
43)	0.33 + 0.045	0.375
44)	-0.006 + 9	8.994
45)	316.9 - -63.8	380.7
46)	5 * 0.031	0.155
47)	7 - 0.003	6.997
48)	42 + 256	298
49)	27 * 1	27
50)	27 - 0.09	26.91
51)	8.1 - -169	177.1
52)	0.08 + 8	8.08
53)	632 + 47.2	679.2
54)	145 * 15	2175
55)	0.058 + -0.01	0.048
56)	888 + 89	977
57)	50 + 1956	2006
58)	-96 * -0.081	7.776
59)	335.4 - 202	133.4
60)	946 + 65	1011
61)	-3 / 0.1	-30
62)	-49 + 6	-43
63)	-349 - -4416	4067
64)	5.9 + -0.9	5
65)	0.06 / 0.02	3
66)	-1 + -4	-5
67)	0.8 / 0.5	1.6
68)	3 * 9.9	29.7
69)	-0.007 * -6	0.042
70)	0.04 * 1	0.04
71)	9664 + 8	9672
72)	7.2 * 20	144
73)	69 - -0.38	69.38
74)	8.73 + 18	26.73
75)	-647 + 1135	488
76)	-67 / 1	-67
77)	2 * -51	-102
78)	18.5 / 0.4	46.25
79)	4210 + 5348	9558
80)	22.82 - 1	21.82

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