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)	3 - -302	305
2)	219 - 374	-155
3)	21 - 44	-23
4)	0.28 - -0.008	0.288
5)	7 * 0.005	0.035
6)	-38 + 7298	7260
7)	978 + -77	901
8)	0.084 - -5	5.084
9)	2.4 * 485	1164
10)	625 + 0.1	625.1
11)	-54 - -6	-48
12)	-4 + 37	33
13)	-32 * 6	-192
14)	4734 - 7	4727
15)	-0.63 * -90	56.7
16)	613 + 26	639
17)	1 + 26	27
18)	0.009 - -5	5.009
19)	0.97 + 0.09	1.06
20)	-6 - 1.31	-7.31
21)	-308 + -24	-332
22)	4 * 0.002	0.008
23)	112 + 56	168
24)	-8 - 84	-92
25)	193 + -223	-30
26)	5404 + -4	5400
27)	7 - -3.9	10.9
28)	-799 + 7760	6961
29)	76 + 9	85
30)	-60.2 + -13.5	-73.7
31)	1 - 30.3	-29.3
32)	0.1 + 0.8	0.9
33)	-90 - 348	-438
34)	0.064 / 8	0.008
35)	3.14 + -13	-9.86
36)	-0.008 + 9.84	9.832
37)	3 - -6782	6785
38)	0.3 + -0.123	0.177
39)	-0.8 * 0.9	-0.72
40)	-0.02 + 2	1.98
41)	468 + 708	1176
42)	-9.1 - 2	-11.1
43)	0.65 - 3.7	-3.05
44)	-6.397 + 7.4	1.003
45)	-1.2 - -64	62.8
46)	-7 * 49	-343
47)	5.3 - -5.68	10.98
48)	-5 + 27.5	22.5
49)	0.008 * 311	2.488
50)	-2.27 / 1	-2.27
51)	4962 - 2094	2868
52)	31.1 + 3.6	34.7
53)	2.47 + 9.3	11.77
54)	31 + -3	28
55)	-0.7 - -0.795	0.095
56)	0.97 + 32	32.97
57)	6 * 0.779	4.674
58)	1 + 5.409	6.409
59)	2136 + 8	2144
60)	0.06 * 28.6	1.716
61)	-0.064 - -0.5	0.436
62)	-8.99 + 73	64.01
63)	5 + -0.09	4.91
64)	6620 - 1108	5512
65)	8 + 851	859
66)	41.3 * 7	289.1
67)	264 / 6	44
68)	-0.2 - -1	0.8
69)	7 * 1	7
70)	1 - 79	-78
71)	6 / 2	3
72)	7 + -0.002	6.998
73)	-9 * -375	3375
74)	6 + -0.08	5.92
75)	26 * 12.5	325
76)	7 + 4	11
77)	0.42 + 2	2.42
78)	7.465 / 1	7.465
79)	87 + 0.7	87.7
80)	71 * 9	639

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