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)	-7.7 * 2	-15.4
2)	0.008 + 4.09	4.098
3)	92 - -5.85	97.85
4)	9 / 0.008	1125
5)	6 + 5	11
6)	8 - 82.7	-74.7
7)	799 + 486	1285
8)	28 - -230.9	258.9
9)	-49 + 650	601
10)	-85 + 38	-47
11)	61.5 * -6	-369
12)	2 + 7	9
13)	0.018 + 6	6.018
14)	-18 + 7.2	-10.8
15)	0.008 - -0.02	0.028
16)	4608 + -165	4443
17)	6.6 + -0.8	5.8
18)	8 + 781	789
19)	22 * 4	88
20)	0.6 * 3.7	2.22
21)	0.7 + 97	97.7
22)	5 - 91	-86
23)	7 - 932	-925
24)	642 - 6	636
25)	0.004 / 4	0.001
26)	-936 + 2031	1095
27)	37.8 + 6	43.8
28)	295 + 958	1253
29)	0.04 + 49	49.04
30)	0.5 * 708	354
31)	983 + -0.2	982.8
32)	6.196 + 5.764	11.96
33)	177.1 - 3.6	173.5
34)	-6 + 38	32
35)	-6 * 44	-264
36)	0.925 * 4	3.7
37)	9628 - 3547	6081
38)	-6 / 4	-1.5
39)	85 + 0.35	85.35
40)	-322 + -643	-965
41)	562 + 3	565
42)	6.333 - 0.042	6.291
43)	98 + 7	105
44)	6 - -920.4	926.4
45)	-0.007 * -750	5.25
46)	5 - 941	-936
47)	93.5 + 7	100.5
48)	7 + 218	225
49)	-2 * 39	-78
50)	390 + -0.3	389.7
51)	3.582 / 0.04	89.55
52)	-927 + 23	-904
53)	0.7 + 17	17.7
54)	1 + 0.009	1.009
55)	234 + 27	261
56)	228 * 0.06	13.68
57)	517 + 1431	1948
58)	0.02 - -8.841	8.861
59)	0.9 + 0.01	0.91
60)	0.51 * 0.2	0.102
61)	9 + 823	832
62)	0.005 - -0.7	0.705
63)	-0.3 * 61	-18.3
64)	-73 / 5	-14.6
65)	-6 + 77.93	71.93
66)	36 * 0.054	1.944
67)	5 - 0.7	4.3
68)	88 * 4	352
69)	-0.06 * -329	19.74
70)	46 + 59	105
71)	-0.5 + 0.03	-0.47
72)	-5.4 * -121	653.4
73)	615 + 23	638
74)	0.861 / -0.007	-123
75)	96 - 1.68	94.32
76)	7.9 + 8	15.9
77)	353 + -0.2	352.8
78)	629 - -69	698
79)	-0.23 - -25.79	25.56
80)	0.3 + 45	45.3

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Test: Easy | Medium | Hard
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