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) 9880 * -0.001 -9.88
2) 33 * 0.75 24.75
3) 52 + -511 -459
4) 60.42 + 9 69.42
5) 57 - -3298 3355
6) 441 / 0.6 735
7) 65 - 4.4 60.6
8) 462 + 556 1018
9) -0.06 - 0.03 -0.09
10) -5 + 14 9
11) -6 - 3 -9
12) 3.7 * 0.3 1.11
13) 40 * 89.1 3564
14) -37.5 - 2 -39.5
15) 2.3 - 0.009 2.291
16) 4.254 + -0.08 4.174
17) 1550 * 0.05 77.5
18) 2 / -0.025 -80
19) 145 - 90 55
20) 21 - 5 16
21) 90 / 5 18
22) 526 * -0.005 -2.63
23) 6 / 0.02 300
24) -1 + -243 -244
25) -441 / -0.3 1470
26) 2.89 + 86 88.89
27) -730 / 584 -1.25
28) 15 + 84 99
29) 48 + 0.06 48.06
30) 2.2 + 6.4 8.6
31) 0.793 + 0.006 0.799
32) -3 * 37 -111
33) -7 + 9.2 2.2
34) -0.107 - -0.39 0.283
35) -1 - 34 -35
36) 504 + 37 541
37) 88 - 0.08 87.92
38) 7 - 8 -1
39) -65 + -598 -663
40) 30 * 0.04 1.2
41) 0.78 + -6 -5.22
42) 0.06 + 4 4.06
43) 98.4 - 5.42 92.98
44) -4 * -65 260
45) 41 / 0.4 102.5
46) 532 + 50 582
47) 7854 + 29 7883
48) -0.003 + 6.9 6.897
49) 1 - -0.73 1.73
50) 507 * 1 507
51) -81 - 84 -165
52) 67 - -51 118
53) 0.37 + -8.99 -8.62
54) -0.56 + 0.58 0.02
55) -415 + 475 60
56) 874 / 4 218.5
57) 12.21 + 43 55.21
58) 2 - 0.33 1.67
59) 33 + -2 31
60) -19 * -71 1349
61) -4 + 27 23
62) -4 - 561 -565
63) -0.5 + 0.9 0.4
64) 65 + 0.54 65.54
65) 0.1 + 0.36 0.46
66) -58 - 2.2 -60.2
67) -47 * 0.1 -4.7
68) -0.485 + 8 7.515
69) 8 - 0.04 7.96
70) 0.04 - 0.21 -0.17
71) 0.48 - 3.9 -3.42
72) 5 - 9.6 -4.6
73) -96 * 0.2 -19.2
74) 1 + -0.731 0.269
75) -26 + -6 -32
76) -6 - 924 -930
77) 0.01 * 171 1.71
78) 27 / -0.2 -135
79) -5.6 * 0.2 -1.12
80) 7 + 272.9 279.9


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