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) 2.6 * 2.99 7.774
2) -0.003 - -1 0.997
3) 194 / -0.4 -485
4) 718.7 + -469 249.7
5) -8.9 - -71 62.1
6) 82 + 10.44 92.44
7) 0.54 + 7 7.54
8) 69 + 0.8 69.8
9) 93 - 83 10
10) 0.59 * 6 3.54
11) 8.6 / 0.8 10.75
12) 42 - -908.3 950.3
13) -8.25 / 3 -2.75
14) 0.015 * -2 -0.03
15) 63.13 - 11 52.13
16) 0.001 + 0.005 0.006
17) 0.065 / 0.026 2.5
18) 10.9 + 724.6 735.5
19) 327 - 710 -383
20) 77 + -0.5 76.5
21) 5 + 848 853
22) -36 / 9 -4
23) -223 * 2 -446
24) 0.05 * 4 0.2
25) -3 - -88 85
26) 88.9 - -77 165.9
27) 54 * 40 2160
28) 0.08 * -0.5 -0.04
29) -46.5 * -3 139.5
30) -362 - 75 -437
31) 7199 + 56 7255
32) 911 + 7 918
33) -5 + 221 216
34) 3.788 - -3.825 7.613
35) 434 + 0.5 434.5
36) 0.11 + -1 -0.89
37) 9 - -0.789 9.789
38) 10 * 2 20
39) 9 * 0.54 4.86
40) 0.1 / 5 0.02
41) 266 + 73 339
42) 3743 + -638 3105
43) -237 + 8791 8554
44) -5.88 * -5 29.4
45) -863 + -5 -868
46) 23 / 2 11.5
47) 12.2 - -0.01 12.21
48) 11 + -16 -5
49) 48 + 68 116
50) 33.5 - 1.92 31.58
51) 0.7 + 9.2 9.9
52) 2 * 5.63 11.26
53) -411 - 8 -419
54) 27.1 - 4 23.1
55) 3 * 549 1647
56) 5.8 + 135.1 140.9
57) -5 - 97 -102
58) 8 * 0.004 0.032
59) 7 - 12.52 -5.52
60) 716 / -4 -179
61) 49.08 / 0.006 8180
62) 85.73 + 0.07 85.8
63) 0.8 * 1 0.8
64) 175.9 - 4.1 171.8
65) 8.798 + 0.2 8.998
66) 6.1 - 85 -78.9
67) -92 + 4428 4336
68) 9 * -107 -963
69) -87 - 6 -93
70) 5.4 * 6 32.4
71) -0.7 * 2 -1.4
72) 28 * 167 4676
73) 0.79 * 82 64.78
74) 184 + 22 206
75) 0.02 + 9.11 9.13
76) -0.738 / 0.045 -16.4
77) 38.07 + 3.86 41.93
78) 0.3 / 4 0.075
79) -28 + -21 -49
80) -35 + 7.8 -27.2


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