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) 7 * 0.95 6.65
2) -326 + -57 -383
3) 0.7 * 0.1 0.07
4) 26.9 - 84 -57.1
5) -0.5 * 0.08 -0.04
6) 272 - 0.4 271.6
7) 0.4 + 0.474 0.874
8) 1 - 81 -80
9) 0.7 + 5 5.7
10) 5.72 + -7.9 -2.18
11) 66 - 0.1 65.9
12) 0.007 + 0.085 0.092
13) 81.2 - -0.04 81.24
14) 1 * 58 58
15) 4519 + 430 4949
16) 7 + 0.6 7.6
17) 75 - 2.9 72.1
18) 0.037 - -1.6 1.637
19) 80 - 73 7
20) 21 - -0.7 21.7
21) 96 + 42.5 138.5
22) 554 * 0.02 11.08
23) 9 / 4 2.25
24) -65 - -137 72
25) 8 + 13.8 21.8
26) 1809 - 414 1395
27) -33 * -61 2013
28) 73.7 + -0.04 73.66
29) 0.008 + 0.1 0.108
30) 467 + 487 954
31) -0.72 / -0.8 0.9
32) 766 + 30.8 796.8
33) 42 + 8 50
34) 5 + 27 32
35) -599 - 355 -954
36) 3.97 * -2 -7.94
37) -3 / 0.6 -5
38) -5.9 * 8 -47.2
39) 92 - 29 63
40) 69.85 - 10 59.85
41) -3 + 6 3
42) 451.2 + 269 720.2
43) 67 / 5 13.4
44) 9.2 - 0.3 8.9
45) 0.07 * 17 1.19
46) 0.99 + 3 3.99
47) 1 * 6 6
48) 0.22 * 1365 300.3
49) -3.2 + 10 6.8
50) 8.155 + 0.01 8.165
51) -5.216 + 9.14 3.924
52) -7 - 0.05 -7.05
53) 0.1 * -6 -0.6
54) -3.7 + 1.3 -2.4
55) 4 / 0.001 4000
56) 594.7 - 47 547.7
57) -317 + 57 -260
58) -0.9 / 2 -0.45
59) -0.009 - -0.04 0.031
60) 2 - 187 -185
61) -6.1 + 927 920.9
62) 0.003 + 5 5.003
63) 6609 - -59 6668
64) -9 + 0.8 -8.2
65) 90.99 + 0.1 91.09
66) 1 - -868.8 869.8
67) 78 + -2 76
68) 673 - 878 -205
69) 39 + 7391 7430
70) 0.3 + 622 622.3
71) 16 - 9 7
72) 0.064 + 0.004 0.068
73) 7984 + 776 8760
74) 3.708 + 0.09 3.798
75) 431 + -5 426
76) 98.5 + 8.6 107.1
77) -138 + 428.6 290.6
78) 0.5 + 0.69 1.19
79) 240 / 0.6 400
80) 57 + -8 49


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