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)	-8 - -699	691
2)	-709 + 74	-635
3)	-10 - -7	-3
4)	931 - 730	201
5)	-39 / -3	13
6)	912 / 1	912
7)	26 - 664	-638
8)	133.7 + 822	955.7
9)	214 / -0.25	-856
10)	28 - 11	17
11)	296 + 486	782
12)	0.008 - -0.801	0.809
13)	0.08 / 8	0.01
14)	7 + 12	19
15)	0.7 - 0.02	0.68
16)	1 / 4	0.25
17)	0.081 + 8.27	8.351
18)	5 * 0.021	0.105
19)	4.28 + -5	-0.72
20)	-0.09 - -36	35.91
21)	80 + 0.09	80.09
22)	5 * -0.9	-4.5
23)	-0.1 + 74	73.9
24)	6 - 51	-45
25)	4.25 + -0.002	4.248
26)	496 - -4.1	500.1
27)	982 + -802	180
28)	-83 * -7	581
29)	707 - 9	698
30)	6 * -119	-714
31)	-80.3 - -8	-72.3
32)	-8.67 / -1.7	5.1
33)	3460 - -64	3524
34)	0.01 + 0.009	0.019
35)	-2 - 0.05	-2.05
36)	-10 + 9005	8995
37)	0.5 - 83	-82.5
38)	607.5 + 96	703.5
39)	273 / -5	-54.6
40)	8.61 + 6	14.61
41)	-1 - 407	-408
42)	1.6 * 5	8
43)	-49 - 7	-56
44)	59 + -564	-505
45)	5.3 + 398	403.3
46)	0.36 - 4	-3.64
47)	5.35 * -10	-53.5
48)	0.6 + 304	304.6
49)	6 * -6	-36
50)	3 - 66	-63
51)	-504 / -8	63
52)	135.5 + -39	96.5
53)	6 + -803	-797
54)	0.04 * -6	-0.24
55)	2.95 - 3	-0.05
56)	5 + 0.001	5.001
57)	-0.09 - 0.5	-0.59
58)	34 * 91	3094
59)	23 * 29	667
60)	-9.9 * 4	-39.6
61)	-283 / -125	2.264
62)	5.53 - 0.3	5.23
63)	-1.6 + -0.3	-1.9
64)	0.001 * 1	0.001
65)	-1.1 * -14	15.4
66)	-443 + 87	-356
67)	-0.098 - 3.192	-3.29
68)	0.68 - 7	-6.32
69)	35 - -0.33	35.33
70)	-5 / 4	-1.25
71)	5.688 / 0.01	568.8
72)	-9 - -69	60
73)	642 - 257	385
74)	-5 + -732	-737
75)	11.4 / -0.1	-114
76)	-12 * -2	24
77)	1.1 + 0.005	1.105
78)	5380 - -267	5647
79)	1 * 894	894
80)	35 / 0.7	50

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