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) 98 - 10 88
2) 0.08 - -2 2.08
3) 129 + -7 122
4) -1.1 + 197 195.9
5) 0.006 * -25 -0.15
6) 5.353 + 3 8.353
7) 83 - -35.2 118.2
8) -0.04 - 0.71 -0.75
9) -2.99 + -0.02 -3.01
10) 79.7 * 5 398.5
11) 822 - 50 772
12) 0.01 * 85 0.85
13) 11 - 10.2 0.8
14) 0.42 + 0.057 0.477
15) 7279 + -61 7218
16) 82 - 13 69
17) 0.62 + 2 2.62
18) 2 * 0.23 0.46
19) 4.7 - 7 -2.3
20) 36 + 0.91 36.91
21) 912 - 7 905
22) 4 - -3682 3686
23) 47 * 8 376
24) 0.144 + 0.04 0.184
25) 194 + 83 277
26) 1 * 6 6
27) -76 - 2 -78
28) 0.08 + -1 -0.92
29) 801 + 8 809
30) -838 - 1 -839
31) -2 + 92.5 90.5
32) 3.9 - -0.159 4.059
33) 9 + 8.64 17.64
34) -71 + 5665 5594
35) 4 - -5022 5026
36) 3.86 + 4.5 8.36
37) 990 - 3.5 986.5
38) 0.986 + 2 2.986
39) 9 - 0.698 8.302
40) 0.2 + 507.1 507.3
41) 0.75 + 4 4.75
42) 796 - 9 787
43) 0.001 * 2 0.002
44) -37 - -71 34
45) 8 * 0.435 3.48
46) -1.67 + 4.27 2.6
47) 48 - 0.6 47.4
48) 13 * 1.5 19.5
49) 56 + 122.6 178.6
50) -28 - 94 -122
51) 2253 + -9 2244
52) 28 + -60 -32
53) -20 * -0.38 7.6
54) 763 - 75.4 687.6
55) -2.1 * 2 -4.2
56) 5 * 0.038 0.19
57) 60.03 - 7 53.03
58) 6887 + 9 6896
59) 72 - -735.3 807.3
60) -58 / 0.25 -232
61) 1 * 72 72
62) -5 / 1 -5
63) -585 + 1 -584
64) 92 * 4 368
65) 0.055 - -4 4.055
66) 0.12 + 0.933 1.053
67) 50 * -0.04 -2
68) 43 * -2.2 -94.6
69) 6 - 0.008 5.992
70) 4 + 47 51
71) 0.26 + -0.002 0.258
72) -1 / 0.005 -200
73) -0.39 * -94 36.66
74) 5.29 + 62 67.29
75) 94 * 0.106 9.964
76) 53 - 9.64 43.36
77) -0.2 * 1 -0.2
78) -72 + -0.5 -72.5
79) 6.811 - -0.05 6.861
80) 6.74 - 6 0.74


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