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) 0.8 - 0.2 0.6
2) 1 + 628.8 629.8
3) -0.9 * 61 -54.9
4) -7 - -842 835
5) 394.3 + 95.4 489.7
6) 0.265 * 82 21.73
7) 8885 - 975 7910
8) 20.5 * 6.8 139.4
9) 25 - 0.1 24.9
10) -2 / -0.005 400
11) 0.08 + 8 8.08
12) 1.5 * 77 115.5
13) 6 + 4 10
14) 0.026 * 83 2.158
15) 4920 + -8 4912
16) 45 - 755 -710
17) -0.052 - -0.8 0.748
18) 40 / -0.2 -200
19) -2 - 57 -59
20) 0.096 + 0.6 0.696
21) 7 - -5 12
22) 26 * -0.02 -0.52
23) 5025 - -71 5096
24) 8 + 9 17
25) 7.536 / 0.008 942
26) -9 + 191 182
27) 3486 + 637 4123
28) -919 + 38 -881
29) -80 + 896 816
30) 0.06 - 9.7 -9.64
31) 4 + 6 10
32) 48 + 0.2 48.2
33) 9 / -0.06 -150
34) 0.36 + 0.009 0.369
35) 0.08 + 0.079 0.159
36) -2 - 9 -11
37) 90 - 13.79 76.21
38) -4 - 4 -8
39) 8 - -866 874
40) 0.6 * 43 25.8
41) 17 - 44 -27
42) 8.2 + 0.04 8.24
43) 39.5 + 3.3 42.8
44) -5 + 682 677
45) 620 + 3956 4576
46) 117 - -51 168
47) 0.377 * 1 0.377
48) 1 + 240 241
49) 2 / 0.001 2000
50) -0.017 * 70 -1.19
51) 116 * -0.5 -58
52) 84 * -0.4 -33.6
53) 2.3 + -0.7 1.6
54) -0.1 / 0.002 -50
55) -1 + -52 -53
56) 0.6 * 0.9 0.54
57) 6.45 - 0.05 6.4
58) 45 * 6.62 297.9
59) 5 * 0.05 0.25
60) -61 / -2 30.5
61) 0.46 * -3.5 -1.61
62) 2 + -24 -22
63) 9 / -0.9 -10
64) 67 + 4535 4602
65) -98 + 292 194
66) 0.005 - -0.1 0.105
67) -8.8 - 54 -62.8
68) 0.9 * 6510 5859
69) 5 + 22.8 27.8
70) 0.02 + 96 96.02
71) 5.2 / -5 -1.04
72) -60 + -96 -156
73) 860 + -835.8 24.2
74) 123 - 76 47
75) 12 * -5 -60
76) 4 - -88 92
77) 0.7 * 0.79 0.553
78) 7 + 2 9
79) 95 + 1 96
80) 0.01 + -5 -4.99


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