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) 3.74 - 6 -2.26
2) 0.6 - 0.287 0.313
3) 807 + -3.8 803.2
4) 4.9 - -2.73 7.63
5) 1.2 / 0.04 30
6) 0.55 * 0.6 0.33
7) 978 - 944 34
8) 1021 * 3 3063
9) -274 - -521 247
10) -412 / 0.5 -824
11) 7.2 - 1 6.2
12) 2 * -6.9 -13.8
13) 39 - 9.04 29.96
14) -54.1 + 65 10.9
15) 8 - 3 5
16) -7.7 * 5 -38.5
17) -63.6 + 551 487.4
18) 0.03 * 49.4 1.482
19) -0.09 - -1 0.91
20) 5.9 / -0.1 -59
21) 2 + 8284 8286
22) 2.3 + 0.004 2.304
23) 30 - 53.8 -23.8
24) 58 + 7722 7780
25) 8.31 + -0.05 8.26
26) 3.52 + 7.08 10.6
27) 58.4 + -57.2 1.2
28) -8 - -6 -2
29) 0.6 + 659 659.6
30) 3 * 68 204
31) 8.132 - 0.83 7.302
32) -0.9 - 0.01 -0.91
33) -0.003 / 0.06 -0.05
34) 0.652 - 0.2 0.452
35) 9 * 804 7236
36) 0.8 + -3 -2.2
37) 5 - -1593 1598
38) 7 + 322 329
39) 6.999 + -4.56 2.439
40) -820 - -335 -485
41) 0.002 + 0.022 0.024
42) -841 * -0.2 168.2
43) 1328 - 1771 -443
44) 0.1 + 9.5 9.6
45) 89.8 / 0.1 898
46) 499 + 99 598
47) 5275 - 137 5138
48) 1122 + 3 1125
49) 8 + 12 20
50) 1 * -0.75 -0.75
51) 85 + 0.06 85.06
52) 5 * 4 20
53) 214 - -1 215
54) 50 * 87 4350
55) -83 / 2 -41.5
56) 82 - 0.86 81.14
57) 4 + 0.41 4.41
58) -926 / 2 -463
59) 0.709 - 0.036 0.673
60) 89 + -3.5 85.5
61) 8 * -2 -16
62) 50.8 - 15 35.8
63) -23.5 - -300 276.5
64) 8 * 0.2 1.6
65) 9 + -79 -70
66) 8 * 1.4 11.2
67) 28 / -7 -4
68) 0.003 * 164 0.492
69) 1 + 136 137
70) -0.869 - -5.3 4.431
71) -24 + -20 -44
72) 9395 * 0.1 939.5
73) 6 / 0.8 7.5
74) -224 - -636 412
75) 24 + -9.68 14.32
76) 1 + 92.9 93.9
77) -2 * 315.5 -631
78) 0.172 + 0.243 0.415
79) 1766 - -6 1772
80) 99 * 7 693


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