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) 4 - 3 1
2) 0.6 + -7 -6.4
3) -0.8 - -211 210.2
4) 71.8 / 1 71.8
5) 0.7 / -0.04 -17.5
6) 11 - 9 2
7) 403.7 + -5.5 398.2
8) 0.75 - 0.003 0.747
9) -428 + -85 -513
10) 0.5 * 0.03 0.015
11) 30 * 0.9 27
12) 2.1 + 1.7 3.8
13) -0.001 + 7 6.999
14) -5 * 2 -10
15) 9.02 + 0.03 9.05
16) 0.51 - -0.002 0.512
17) 8 + 29.9 37.9
18) -5 * -0.007 0.035
19) 36 * 0.126 4.536
20) 0.007 + 0.05 0.057
21) 0.008 * 0.5 0.004
22) 0.163 - 6.853 -6.69
23) 55.06 + 3 58.06
24) 104.9 + 1.4 106.3
25) 5.2 * 865 4498
26) 541 - -14.1 555.1
27) 54 * -16 -864
28) 0.7 - 10 -9.3
29) 6.64 + 4 10.64
30) -8 + 0.5 -7.5
31) -7 + 1 -6
32) -1 - -0.71 -0.29
33) 0.078 + 0.4 0.478
34) 7 - 5.48 1.52
35) 6 / -1 -6
36) -962 - -941 -21
37) -8 * -0.891 7.128
38) 21 - 920 -899
39) 3 + -3 0
40) 0.88 - 0.003 0.877
41) 9 / 6 1.5
42) 0.04 * 7 0.28
43) -308 + 224 -84
44) 1 - 0.6 0.4
45) 0.003 * 987 2.961
46) 0.2 - 75 -74.8
47) 0.07 - 0.032 0.038
48) 0.53 - 5.31 -4.78
49) -4 - 9 -13
50) 73.9 + -0.1 73.8
51) 0.093 - -8 8.093
52) 1 + 8 9
53) -80 + 62 -18
54) 15 * -0.3 -4.5
55) 55 - 73 -18
56) -4.57 + -3.4 -7.97
57) 222 / 1 222
58) 267 * 0.9 240.3
59) 0.5 - 21 -20.5
60) 0.05 - 0.76 -0.71
61) 160 - -380.5 540.5
62) -7 * 0.4 -2.8
63) 0.8 + 0.059 0.859
64) -4 - 0.01 -4.01
65) 997 / 0.2 4985
66) 9.13 - 3 6.13
67) 44 * -0.07 -3.08
68) -0.02 + 0.8 0.78
69) -6 + 422 416
70) 0.01 + 0.2 0.21
71) 0.399 * 23 9.177
72) 9179 - 7527 1652
73) -712 - -7336 6624
74) 4 + 209.6 213.6
75) -8 + 10.2 2.2
76) 2563 + 1638 4201
77) 0.9 / -0.004 -225
78) 0.006 * 7 0.042
79) -71.1 - 6 -77.1
80) 8 + -0.8 7.2


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