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)	0.36 * 7.2	2.592
2)	-0.6 - -2.9	2.3
3)	-734 + 4631	3897
4)	84 + 66	150
5)	7.5 - 7	0.5
6)	7.5 - 0.99	6.51
7)	0.5 + 0.99	1.49
8)	0.9 + 155	155.9
9)	22 - -177	199
10)	0.6 + -5.52	-4.92
11)	0.5 + 8.137	8.637
12)	8 - -32	40
13)	-7 * 50	-350
14)	-5 - 8	-13
15)	14 * 4.38	61.32
16)	-0.5 + 4.8	4.3
17)	0.038 + 0.008	0.046
18)	-7 - 146	-153
19)	-4 / 5	-0.8
20)	-0.78 * 300	-234
21)	7.63 - 1.15	6.48
22)	0.004 + 0.035	0.039
23)	189 / 54	3.5
24)	3 * 93	279
25)	-862 + -6	-868
26)	0.956 + 2	2.956
27)	2 - -42.92	44.92
28)	-46 - -8116	8070
29)	0.007 + 4.7	4.707
30)	-332 + -8	-340
31)	3 * -0.7	-2.1
32)	82 + 6946	7028
33)	-78 - -302	224
34)	-213 / 0.5	-426
35)	6.6 - 37	-30.4
36)	-958 + 18	-940
37)	8 - 9	-1
38)	38 - 798	-760
39)	-1.2 - 0.01	-1.21
40)	81.2 - -183	264.2
41)	7 * 4.89	34.23
42)	72 - 6	66
43)	0.2 * 64	12.8
44)	1.3 + 781	782.3
45)	6 - -8	14
46)	9 + -840	-831
47)	9 - 0.089	8.911
48)	0.009 + 3	3.009
49)	-1 - 2	-3
50)	-352 + 5489	5137
51)	0.87 + 44.43	45.3
52)	7 - 6	1
53)	-6.64 + 0.19	-6.45
54)	5 - 0.041	4.959
55)	-1 + -5.16	-6.16
56)	0.004 - -6	6.004
57)	0.06 / 0.075	0.8
58)	9344 - 140	9204
59)	0.01 * 35	0.35
60)	2 - -74.1	76.1
61)	52 + -33.7	18.3
62)	4.4 + -0.1	4.3
63)	69 / 1	69
64)	9 * 655	5895
65)	85 - 6	79
66)	0.029 + 3	3.029
67)	-5 * -0.005	0.025
68)	20 + -637	-617
69)	-9 + 3	-6
70)	671 - -0.3	671.3
71)	-9 + -2	-11
72)	2.67 + 6	8.67
73)	0.08 - -41.16	41.24
74)	8.45 + 2.41	10.86
75)	0.9 - -879	879.9
76)	0.05 * 1	0.05
77)	9.1 + 0.497	9.597
78)	6 - 0.21	5.79
79)	-3 * -0.039	0.117
80)	0.08 + 72	72.08

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