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) 0.76 - -44 44.76
2) 724.7 - 34 690.7
3) 4.89 + 8 12.89
4) 17.5 - 45 -27.5
5) 27 + -85 -58
6) 251.8 + -286 -34.2
7) 5621 - 893 4728
8) -3.1 + 7.37 4.27
9) 4.9 + 5 9.9
10) 54 + -3 51
11) 0.1 * 2496 249.6
12) 0.06 + 6.157 6.217
13) 7 * 2 14
14) 0.005 / 0.04 0.125
15) -1.05 + 0.04 -1.01
16) 0.09 + 94 94.09
17) -0.08 * 9 -0.72
18) 0.09 - -37 37.09
19) -15 - 3.4 -18.4
20) -97 / 5 -19.4
21) -38.8 + 92 53.2
22) 1 * -384 -384
23) -8 / 0.5 -16
24) 74 - -0.3 74.3
25) -931 + 6 -925
26) 71 - 6 65
27) -2 + -148 -150
28) -84 * 5 -420
29) 38 + 43 81
30) 98 - 97 1
31) -44 / -50 0.88
32) 4 - 0.734 3.266
33) 3 + 8 11
34) 4.05 - 2.407 1.643
35) -8 + 5.03 -2.97
36) 0.14 * -2 -0.28
37) 0.7 + -97 -96.3
38) -92 + 6 -86
39) 3708 + 48 3756
40) 59.5 * -6 -357
41) 0.9 - -7 7.9
42) 65 + -5 60
43) 9 - 0.007 8.993
44) 0.848 + 0.99 1.838
45) 4.937 - -0.993 5.93
46) 8450 / 10 845
47) -605 + -20 -625
48) 31 + -30.57 0.43
49) -0.25 - 8 -8.25
50) 325 * -0.008 -2.6
51) 5 + 1252 1257
52) 25 * 0.04 1
53) -0.2 + 0.9 0.7
54) 3.89 + 0.003 3.893
55) 7 * 915 6405
56) 0.087 + 0.006 0.093
57) -909 / -9 101
58) -40 - -5520 5480
59) -6 - -8403 8397
60) 9 / -10 -0.9
61) 3.52 + 0.06 3.58
62) 0.009 * 3 0.027
63) 29 + -76 -47
64) 17 / 0.2 85
65) 3.5 * 2.2 7.7
66) -2 - -6 4
67) -3 - -5 2
68) 4 - 963 -959
69) 0.878 + 1 1.878
70) 2501 - 9 2492
71) 18 - 3 15
72) 356 * 0.008 2.848
73) -97 + -63 -160
74) 2.7 - -0.01 2.71
75) 867 - 49 818
76) -37 * -21 777
77) 84 * 0.7 58.8
78) 3 + -41.3 -38.3
79) 1619 + 15 1634
80) -1 + 4.97 3.97


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