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)	0.9 - 1	-0.1
2)	-491 + 6291	5800
3)	6 + 0.04	6.04
4)	36.9 + 0.68	37.58
5)	529 / 1	529
6)	-0.05 + 1.12	1.07
7)	522 * 0.006	3.132
8)	0.2 * 4082	816.4
9)	-384 / 4	-96
10)	29 - -0.1	29.1
11)	7 + -102.1	-95.1
12)	9 + 56	65
13)	405 - 72	333
14)	8 * 3	24
15)	0.022 - -0.003	0.025
16)	3 * 9	27
17)	0.01 + 5	5.01
18)	-0.5 * -6	3
19)	4.72 + 25	29.72
20)	6.92 + 24.23	31.15
21)	6 - 8	-2
22)	-11 - -23	12
23)	539 - 425	114
24)	-8 + -668	-676
25)	8 - 0.082	7.918
26)	0.4 + 17	17.4
27)	-96 - 875	-971
28)	-6 - -5	-1
29)	0.2 * 1	0.2
30)	84.6 + 9	93.6
31)	964 + 3500	4464
32)	0.001 - -0.6	0.601
33)	-44 + -9	-53
34)	9.62 - -2	11.62
35)	-0.6 + 0.05	-0.55
36)	51 + 42.6	93.6
37)	874 - -90.1	964.1
38)	9 - 0.006	8.994
39)	3 - 0.084	2.916
40)	0.006 + 3.1	3.106
41)	-7 - -244	237
42)	0.5 * 6	3
43)	59 / -1	-59
44)	-0.001 + 0.6	0.599
45)	-223 - -776	553
46)	0.4 * 9.5	3.8
47)	0.3 / -0.006	-50
48)	5930 + 3871	9801
49)	-1 * 950	-950
50)	-79.6 + -5	-84.6
51)	839.8 + -7.2	832.6
52)	-7 - 8.3	-15.3
53)	3893 + -8	3885
54)	-89 + 4910	4821
55)	48 * 8	384
56)	-4 + 6	2
57)	-731.2 + 885	153.8
58)	-9 + 853	844
59)	454 + 3	457
60)	57.6 * 6	345.6
61)	503 - -8008	8511
62)	2 * 0.9	1.8
63)	6017 - 1384	4633
64)	0.6 * 5	3
65)	-1620 / 2.5	-648
66)	5006 + 60	5066
67)	94 + 3.06	97.06
68)	74 / -4	-18.5
69)	387 - -1	388
70)	3 + -0.09	2.91
71)	-90 - 112	-202
72)	433.8 + 403	836.8
73)	6688 + 8	6696
74)	2 - -280	282
75)	-0.01 * -2714	27.14
76)	0.006 / 0.03	0.2
77)	-466 - 168	-634
78)	-75 + -73	-148
79)	11 + -8	3
80)	-8 / -0.5	16

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