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)	460 + -3	457
2)	1 + 716	717
3)	1 - -4	5
4)	-1 - 979	-980
5)	0.4 + 51	51.4
6)	-0.008 - -8	7.992
7)	-90 * -1	90
8)	0.001 - -2	2.001
9)	7 * 102.2	715.4
10)	-3 * 60	-180
11)	5 - 0.004	4.996
12)	93.4 + 0.3	93.7
13)	871 + 5172	6043
14)	73 - 9.26	63.74
15)	0.001 - -6	6.001
16)	6.688 + 0.098	6.786
17)	98 / -5	-19.6
18)	9660 - 9188	472
19)	-1.6 + 1	-0.6
20)	27 - 176	-149
21)	2 * 1.23	2.46
22)	7744 - -7	7751
23)	-133 * 3	-399
24)	-1 - -3	2
25)	-3.2 + -33	-36.2
26)	-362 - -5	-357
27)	-4.1 * -58	237.8
28)	8731 - 62	8669
29)	0.4 + 8	8.4
30)	78.19 + 0.2	78.39
31)	0.23 * 390	89.7
32)	-8 + -5	-13
33)	8.933 - 4	4.933
34)	4 - -1470	1474
35)	-0.008 + 0.036	0.028
36)	-17 - 90	-107
37)	0.08 + 0.056	0.136
38)	16.22 * 5	81.1
39)	498 - -920	1418
40)	620 + 4303	4923
41)	-4 * 9	-36
42)	8 + -0.5	7.5
43)	2 * -0.6	-1.2
44)	-82.2 + 0.6	-81.6
45)	4.623 + 0.5	5.123
46)	254 - -328	582
47)	0.83 + -0.04	0.79
48)	89.77 + 9.69	99.46
49)	1.4 + 215	216.4
50)	0.06 * 9.3	0.558
51)	-14 + 4	-10
52)	483 - -3917	4400
53)	6382 + 211	6593
54)	61 - -4626	4687
55)	0.8 / 0.01	80
56)	3574 - 4165	-591
57)	0.6 + -30	-29.4
58)	7 / 4	1.75
59)	22 - 7.21	14.79
60)	-844 + 6	-838
61)	16.29 - 2	14.29
62)	6 + -0.088	5.912
63)	2 - -55	57
64)	0.2 + 3	3.2
65)	-30 / -6	5
66)	-93 * -7.1	660.3
67)	9006 - -835	9841
68)	6 * 5	30
69)	29 + -0.05	28.95
70)	0.19 + 94	94.19
71)	-0.075 - -7.8	7.725
72)	261.3 - -42	303.3
73)	1.6 + 73.22	74.82
74)	5080 / -8	-635
75)	4.6 + 0.8	5.4
76)	35 * -0.01	-0.35
77)	-699 + -6	-705
78)	-302 + 75	-227
79)	8.438 - 4.59	3.848
80)	93.6 + -43	50.6

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Test: Easy | Medium | Hard
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