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) -0.2 - 54 -54.2
2) -51 / -17 3
3) 3012 - -941 3953
4) 87 * 7 609
5) -475 * -18.8 8930
6) -2515 - -3508 993
7) -0.42 * 160 -67.2
8) 4 + 146.5 150.5
9) 6.2 * 78 483.6
10) 622 * 4 2488
11) 9.073 - 0.01 9.063
12) 25 + 1 26
13) 43 * 0.027 1.161
14) 635.3 + -75 560.3
15) 6 + 0.53 6.53
16) 35 - -31 66
17) 0.8 + 0.1 0.9
18) 35.1 * 4 140.4
19) -9 + -0.5 -9.5
20) 3 * -2 -6
21) -185 - -417 232
22) 191 + 57 248
23) 7 - -0.03 7.03
24) 85 - 4.08 80.92
25) 69 - 78.3 -9.3
26) 280 / -80 -3.5
27) 84 + 362 446
28) 0.3 * 2 0.6
29) 3.1 - 11.4 -8.3
30) 1 * 80 80
31) 0.62 - 0.79 -0.17
32) 0.01 + 0.009 0.019
33) -8 - -23 15
34) -7.6 / -1 7.6
35) 1.2 + 1 2.2
36) 7 + 3951 3958
37) 7 * 0.096 0.672
38) 175 * 22.6 3955
39) 353.5 + -7 346.5
40) 96 - -6 102
41) 0.01 - -72.92 72.93
42) 621 - -5 626
43) 94.58 + 0.1 94.68
44) -8962 + 8956 -6
45) 22 - 0.45 21.55
46) -85 / 1 -85
47) 42 + -50 -8
48) 9.254 + -5.787 3.467
49) 1 - 2.5 -1.5
50) -74 + -3.8 -77.8
51) 6 - 0.511 5.489
52) -152 + -201 -353
53) 1 - -222 223
54) -9 + 211.1 202.1
55) 5.81 + 0.55 6.36
56) -2.9 - 2 -4.9
57) -60.4 - -90.8 30.4
58) -5 + -17.7 -22.7
59) 9 - 0.007 8.993
60) 0.6 + 33.54 34.14
61) 2586 + -876 1710
62) -0.18 + 3 2.82
63) 43 * 0.01 0.43
64) 0.75 + 3 3.75
65) 0.008 / 2 0.004
66) 286 - 210 76
67) -5 * 40 -200
68) -592 + 4995 4403
69) 29 * 0.4 11.6
70) 956.1 + 1 957.1
71) 9 - -4.5 13.5
72) 0.36 - 0.158 0.202
73) 5 * 2 10
74) 1 * 863 863
75) 86 + -4.23 81.77
76) -38 - -27.5 -10.5
77) -83 + 2 -81
78) 8266 + 50 8316
79) 6.4 - 0.242 6.158
80) 17 - 0.09 16.91


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