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) -3 * -0.71 2.13
2) 1 + -57.1 -56.1
3) 0.007 * 792 5.544
4) 17 * 0.128 2.176
5) 8 - -8267 8275
6) 8 + 0.28 8.28
7) 7.8 * 0.6 4.68
8) 324 - -5861 6185
9) 64 + 3 67
10) -6.5 * 40 -260
11) -1 / 5 -0.2
12) -4 * 0.1 -0.4
13) 46 + 52.9 98.9
14) 9.11 - 0.356 8.754
15) -8 * 3.7 -29.6
16) 466 - -3 469
17) 95.1 - -57 152.1
18) 0.81 + 6 6.81
19) -0.3 + 43.3 43
20) -0.08 - -2.3 2.22
21) 835 + 6 841
22) 0.68 / -1 -0.68
23) 440.6 + -93 347.6
24) 93 - 1 92
25) 1.8 - 43 -41.2
26) -331 + 9 -322
27) -5 + 0.25 -4.75
28) -0.7 * 13 -9.1
29) -355 + -395 -750
30) -246 / 4 -61.5
31) 2 - -7 9
32) 0.165 / 0.6 0.275
33) 4.5 + -56 -51.5
34) 0.01 - 3 -2.99
35) 671 + 65 736
36) -5418 + 8765 3347
37) -9 - -440 431
38) 0.7 + 0.04 0.74
39) 4.49 - 2.33 2.16
40) 5 + 6.8 11.8
41) 9.9 * 2 19.8
42) 48 + -0.4 47.6
43) 267 + -7.1 259.9
44) -0.6 * -0.055 0.033
45) -0.07 - -73 72.93
46) 84.17 - 0.04 84.13
47) -61.2 + -7 -68.2
48) 2556 + -49 2507
49) -3 * 0.42 -1.26
50) -0.007 / 0.7 -0.01
51) -5 * -24 120
52) 4 + -94 -90
53) 0.057 * 2 0.114
54) -0.8 + -1 -1.8
55) 8 - -28 36
56) -0.02 - 0.91 -0.93
57) -0.9 / 6 -0.15
58) -0.2 * -949 189.8
59) 0.3 - 6 -5.7
60) 18 - 876 -858
61) 0.01 - 4 -3.99
62) -0.7 - -29.2 28.5
63) 0.08 * 97 7.76
64) -9 + 9.3 0.3
65) 1 * -362 -362
66) 0.8 - -0.008 0.808
67) 9 / 0.018 500
68) 49.8 + -5 44.8
69) 65.52 / 0.72 91
70) -57 + -885 -942
71) 0.6 * 16.9 10.14
72) 322 - 103 219
73) 86.27 + -1 85.27
74) -640 - -337 -303
75) 9 * 64.3 578.7
76) 8 * 0.004 0.032
77) 4 + 450.5 454.5
78) -0.5 / 0.001 -500
79) -0.4 - 0.75 -1.15
80) 9038 - 1 9037


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