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)	-78.4 + 9	-69.4
2)	-0.03 * 58	-1.74
3)	94 + 7.9	101.9
4)	76 * -1	-76
5)	-0.09 - 6.64	-6.73
6)	328 - 694	-366
7)	0.64 + -0.77	-0.13
8)	-0.7 + 4.562	3.862
9)	8 * 0.1	0.8
10)	-9 + 0.18	-8.82
11)	-1.85 * 3	-5.55
12)	0.008 / 0.04	0.2
13)	-0.008 * -61	0.488
14)	116 + -5	111
15)	1 * 65.8	65.8
16)	0.647 * 4	2.588
17)	2205 + -572	1633
18)	0.011 + 0.6	0.611
19)	5 - 185	-180
20)	25 + 75	100
21)	4 - 0.02	3.98
22)	-35 * -0.8	28
23)	-8 + 539	531
24)	-22 * 9	-198
25)	0.129 * 4	0.516
26)	-0.01 - -84.99	84.98
27)	7.29 + 7	14.29
28)	0.33 * 4	1.32
29)	5 + -1.5	3.5
30)	-0.27 - 2	-2.27
31)	-0.03 - 8	-8.03
32)	457 * 3	1371
33)	-721 - -86	-635
34)	4 + -0.04	3.96
35)	0.2 * 424	84.8
36)	0.5 * 3.03	1.515
37)	-0.02 * -74	1.48
38)	-58 + 7	-51
39)	0.7 + 0.2	0.9
40)	3227 - -8	3235
41)	22.5 * 3	67.5
42)	1 + 0.09	1.09
43)	20 * 115	2300
44)	6211 + 9	6220
45)	-0.01 - 0.64	-0.65
46)	0.5 + 2.6	3.1
47)	8.6 - 0.004	8.596
48)	4 / -1	-4
49)	0.02 + 3	3.02
50)	77.16 - -0.4	77.56
51)	7 * 3	21
52)	-3 * -750	2250
53)	7656 + 85	7741
54)	42 + 2	44
55)	8.666 - 0.6	8.066
56)	0.32 * 2680	857.6
57)	5966 - -526	6492
58)	9 - 827	-818
59)	846 + -782.1	63.9
60)	4 * 1	4
61)	-9 - -186	177
62)	-180 * -3	540
63)	2 - 7.25	-5.25
64)	-0.044 / 0.08	-0.55
65)	79 * 4.5	355.5
66)	759 / -1	-759
67)	5 - 264	-259
68)	85.93 + -7	78.93
69)	-96 - -274	178
70)	-7 / 0.2	-35
71)	-0.06 - -22	21.94
72)	-54 * -0.15	8.1
73)	351.4 - 279	72.4
74)	0.4 * 1	0.4
75)	3119 - 90	3029
76)	57 + 78	135
77)	6.2 * 58	359.6
78)	-45 - 0.4	-45.4
79)	99.6 + -0.02	99.58
80)	9.82 + -9.3	0.52

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Test: Easy | Medium | Hard
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