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)	0.888 - 0.088	0.8
2)	10 + 84	94
3)	780 - -4029	4809
4)	8635 - 42	8593
5)	3.7 + 70	73.7
6)	289.6 - -522	811.6
7)	469 * 8	3752
8)	-1 - -641	640
9)	7 * 0.005	0.035
10)	8 * 3	24
11)	86 + -116	-30
12)	-64 - -1108	1044
13)	5 - 808	-803
14)	4 - -0.004	4.004
15)	5 + 92.63	97.63
16)	5.2 + 7	12.2
17)	9 + 4	13
18)	-13 * 7	-91
19)	8 + 828	836
20)	32 * -2	-64
21)	948 + -782	166
22)	9432 + 4	9436
23)	483 - 20	463
24)	-0.004 + 7	6.996
25)	-59 - 135	-194
26)	0.08 * 0.05	0.004
27)	137 - -824.3	961.3
28)	0.004 * 7	0.028
29)	332 / -1	-332
30)	8.1 + 44	52.1
31)	-0.9 - -557	556.1
32)	78 / -0.8	-97.5
33)	0.634 - 0.051	0.583
34)	96 + -622	-526
35)	0.925 * 4.4	4.07
36)	-0.007 + 0.023	0.016
37)	426 * 0.03	12.78
38)	-0.1 - 69	-69.1
39)	-3 + 94.1	91.1
40)	9 * 44	396
41)	74 * 0.32	23.68
42)	-8 - -455	447
43)	-378 + 73	-305
44)	0.01 - 6.29	-6.28
45)	-371 * 0.2	-74.2
46)	-0.002 + 4.5	4.498
47)	8.88 - 3	5.88
48)	-83 - 32	-115
49)	-4 * -241	964
50)	468 - -35	503
51)	-5234 - -9092	3858
52)	-0.007 - -4	3.993
53)	0.53 - 0.6	-0.07
54)	0.01 * -246	-2.46
55)	-0.006 * -4	0.024
56)	-9 + 23	14
57)	6.09 + -3	3.09
58)	2 * -12	-24
59)	2 * 0.72	1.44
60)	-93 * 0.02	-1.86
61)	7523 + -19	7504
62)	0.6 + -0.1	0.5
63)	28 - 339	-311
64)	-6 * 4	-24
65)	-4 + 20.01	16.01
66)	41 - 71	-30
67)	1 * 0.99	0.99
68)	-97 + 2	-95
69)	2396 / 1	2396
70)	-637 * -5	3185
71)	0.7 - 79	-78.3
72)	1 + 5	6
73)	-171 - 6	-177
74)	-1 - 3.6	-4.6
75)	-0.004 - -3.4	3.396
76)	17 + 110	127
77)	3 / -2	-1.5
78)	-68.9 - 4	-72.9
79)	608.4 - 23	585.4
80)	1 - 0.723	0.277

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