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)	305 * 0.002	0.61
2)	7 + 25.3	32.3
3)	2.7 - 77	-74.3
4)	939 + 948	1887
5)	66.44 - -2	68.44
6)	1 * 143	143
7)	-80 - -419.9	339.9
8)	8 * -1	-8
9)	0.03 - -8	8.03
10)	9 / -5	-1.8
11)	8.1 - 98	-89.9
12)	5 - -979	984
13)	62 * 3.5	217
14)	89 + 1.49	90.49
15)	-1 - 2	-3
16)	0.002 - -4.99	4.992
17)	7 * -0.07	-0.49
18)	-2 / 0.05	-40
19)	9 - 4.29	4.71
20)	8.088 + 0.9	8.988
21)	988 + -2	986
22)	-0.09 - 2.4	-2.49
23)	-3 + 29	26
24)	0.297 / 1	0.297
25)	0.03 - 0.02	0.01
26)	0.2 * 3	0.6
27)	-0.4 + -0.1	-0.5
28)	9.5 + 60	69.5
29)	-8 * -0.58	4.64
30)	-941 - -5749	4808
31)	7.946 + -5	2.946
32)	0.4 * 3.31	1.324
33)	-40 + -8	-48
34)	-41 + 4623	4582
35)	5 * 1.7	8.5
36)	-75 - -138	63
37)	261 * 1	261
38)	0.582 + 5.032	5.614
39)	4.559 / 0.05	91.18
40)	715 + 2	717
41)	76 / -4	-19
42)	77 + -5	72
43)	55 - 76.3	-21.3
44)	352 + -626	-274
45)	0.08 / -0.4	-0.2
46)	0.1 / 2	0.05
47)	-67 - 3	-70
48)	0.8 + 0.061	0.861
49)	-24 + -5	-29
50)	0.035 * 0.4	0.014
51)	45 - 20.46	24.54
52)	8 + 9281	9289
53)	1176 * 3	3528
54)	-48 / -0.03	1600
55)	692 - -7619	8311
56)	48 * 0.06	2.88
57)	7 * 6	42
58)	2 + -0.011	1.989
59)	0.9 / 6	0.15
60)	2 * 0.3	0.6
61)	0.1 + 59	59.1
62)	0.04 - -0.08	0.12
63)	111 + 4976	5087
64)	893 * 4	3572
65)	3 * -1.4	-4.2
66)	0.77 - -2.839	3.609
67)	8.5 + 52	60.5
68)	0.5 + 0.008	0.508
69)	1 - 0.661	0.339
70)	-4 / -0.032	125
71)	4 - -12.2	16.2
72)	86 / 5	17.2
73)	-4 * 12	-48
74)	0.1 - 85	-84.9
75)	5 + 7	12
76)	504 - -232	736
77)	0.7 + 437	437.7
78)	8.9 - 78	-69.1
79)	-88 * -70	6160
80)	5794 + -7	5787

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Test: Easy | Medium | Hard
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