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)	0.26 - 0.23	0.03
2)	4347 - 7	4340
3)	61 - 3.5	57.5
4)	6 - -815	821
5)	98 - 9	89
6)	-420 + 965	545
7)	9.48 + -4	5.48
8)	273 - 475	-202
9)	57.5 + -33.1	24.4
10)	7275 / 5	1455
11)	0.08 - 8	-7.92
12)	-87 - 9	-96
13)	0.48 + 0.035	0.515
14)	9 * -0.09	-0.81
15)	-737 * -0.009	6.633
16)	0.722 - 0.091	0.631
17)	543 + 9234	9777
18)	4 + 0.34	4.34
19)	1.4 * 0.07	0.098
20)	-21 + 801	780
21)	6 / 3	2
22)	77 * 0.001	0.077
23)	0.6 * 0.8	0.48
24)	0.7 + 7	7.7
25)	823 + 41.3	864.3
26)	9.1 + 0.2	9.3
27)	-7 + -67	-74
28)	1 - -9.4	10.4
29)	0.62 + 89	89.62
30)	-5 * -6.02	30.1
31)	0.4 - -1	1.4
32)	-17 * -0.5	8.5
33)	0.08 + -0.007	0.073
34)	5 * 0.43	2.15
35)	7 + -0.01	6.99
36)	-7 - 647	-654
37)	0.4 + 0.07	0.47
38)	1 - 4	-3
39)	32 + 39	71
40)	5.854 - 0.057	5.797
41)	-30 + 9	-21
42)	-0.3 - 8.23	-8.53
43)	-3 / 0.5	-6
44)	-3 + 686.9	683.9
45)	0.03 - 8	-7.97
46)	5 + 7	12
47)	-1 + 911	910
48)	9 * 0.711	6.399
49)	0.9 + -0.006	0.894
50)	-687 / 75	-9.16
51)	856 - 2	854
52)	0.006 + 0.06	0.066
53)	0.02 - 0.001	0.019
54)	2 + 3555	3557
55)	-1 - 42.3	-43.3
56)	80 + 134.1	214.1
57)	8.35 - 0.31	8.04
58)	8 - -998	1006
59)	8 + 4	12
60)	3439 + 123	3562
61)	8 - 3.15	4.85
62)	30.5 * 3	91.5
63)	0.004 - -0.005	0.009
64)	2 / -0.04	-50
65)	1574 + 28	1602
66)	-3 / 0.25	-12
67)	3 + 2.44	5.44
68)	74.7 - 45	29.7
69)	4.2 - 39.9	-35.7
70)	-94.9 - 3.5	-98.4
71)	72.9 * 8	583.2
72)	-35 + -10.2	-45.2
73)	388.5 * 2	777
74)	-590 + 221	-369
75)	157.3 + 41	198.3
76)	-0.006 + 2	1.994
77)	29 - 0.7	28.3
78)	-1 + 8925	8924
79)	2 - -0.04	2.04
80)	62 - 3	59

Quick links:

Practice: Easy | Medium | Hard
Test: Easy | Medium | Hard
Customized