Math Test

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.

Term & answer sizes
(total # of digits, including fraction)
(# of digits after ., if variable is a double)
(total # of digits)
(# of digits after ., if used)

Operations

Variables
(This includes floats)

Operators

Optimizations
Limits complexity in some situations.
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) 1 + 7 8
2) -0.1 * 496 -49.6
3) 9.51 + -0.081 9.429
4) 133 - 9 124
5) 4.98 - -4.12 9.1
6) -343 - -17 -326
7) 23 * 0.001 0.023
8) 0.04 - -96 96.04
9) -661 * -1 661
10) 3.8 - 21 -17.2
11) -2.4 - -1 -1.4
12) -6.44 / 4 -1.61
13) 0.04 * 6 0.24
14) 37 - -4 41
15) -8 + 9172 9164
16) 543 - 1508 -965
17) 96 + 6.2 102.2
18) 71 + 276 347
19) 0.931 + 0.8 1.731
20) 0.001 * 1 0.001
21) -730 - -5 -725
22) 8 - -86.6 94.6
23) 3 * 483 1449
24) -337 * -0.005 1.685
25) 8 - -33 41
26) 0.8 * -895 -716
27) -6 * 0.09 -0.54
28) -3 - 2.3 -5.3
29) 6.4 + 9 15.4
30) 4.95 / -5 -0.99
31) 23.9 + 0.08 23.98
32) 9 * 2 18
33) 4.7 + -0.046 4.654
34) 75 * 6.8 510
35) 62.24 + -2 60.24
36) 6.6 / 0.03 220
37) 279 + 345 624
38) -5.4 / 18 -0.3
39) 90.7 + 40 130.7
40) 0.051 / 0.003 17
41) 0.02 * 44 0.88
42) 9 * 0.086 0.774
43) -28.2 / -5 5.64
44) -7 + 1.6 -5.4
45) -0.03 - -8.7 8.67
46) -8 * -0.05 0.4
47) -5.6 - -85 79.4
48) 2 - -67 69
49) -4.224 / -0.03 140.8
50) -84 * 0.09 -7.56
51) -9 + 80.7 71.7
52) -0.73 - -53 52.27
53) 237 - 56 181
54) -9 - -1 -8
55) 523 + 8 531
56) 95 + 7081 7176
57) 366 - 1229 -863
58) -8 * -757 6056
59) 41.04 - -0.8 41.84
60) 8.5 + 0.31 8.81
61) -8 - -1695 1687
62) 8 - 0.2 7.8
63) -0.2 - 44 -44.2
64) 5 + 8 13
65) 3.5 + 0.898 4.398
66) 3 + 181.1 184.1
67) -0.002 * -7.5 0.015
68) 120 + 1940 2060
69) -50 + -0.7 -50.7
70) -0.4 + 0.03 -0.37
71) 6061 + -24 6037
72) 1.068 + 0.06 1.128
73) 9 - 0.3 8.7
74) 0.3 / 0.008 37.5
75) 0.002 * 5 0.01
76) -970 * -0.01 9.7
77) -704 - -2 -702
78) 7 + 0.563 7.563
79) 2 - 0.645 1.355
80) 597 - 42 555


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