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) 0.7 + 66 66.7
2) -44 + 3 -41
3) -2 - 796 -798
4) -2 + 0.09 -1.91
5) 552 - 2 550
6) -23 - -87.4 64.4
7) 31 + 0.2 31.2
8) 41 - -36 77
9) 9 + -94 -85
10) -0.03 / 0.04 -0.75
11) 3 - 4 -1
12) 43 - 2.7 40.3
13) 3 + -96 -93
14) -0.056 + 8 7.944
15) -95.3 - -8 -87.3
16) 92 + 4 96
17) -686 + 3963 3277
18) 0.7 * 765 535.5
19) -9.42 - 0.55 -9.97
20) 3 * -0.6 -1.8
21) 626 - 68.8 557.2
22) 201 + -191.4 9.6
23) 0.5 * 6.996 3.498
24) -0.005 * 2 -0.01
25) -1 + 8096 8095
26) 3527 - -82 3609
27) 0.006 + 0.6 0.606
28) -7 + 82 75
29) 9 - 0.053 8.947
30) 0.75 + -0.041 0.709
31) 9 / 0.8 11.25
32) -7.3 + 6 -1.3
33) 974.5 - 70 904.5
34) 0.3 + 0.002 0.302
35) 1.8 - -409.2 411
36) 0.91 * -4 -3.64
37) 8.8 + -0.087 8.713
38) 0.009 + 2.8 2.809
39) 480 - 13.8 466.2
40) 7.8 + 24.89 32.69
41) -1 + 46.4 45.4
42) 86 * 0.022 1.892
43) 6.1 - 0.6 5.5
44) -0.8 + 0.7 -0.1
45) 0.08 * 983 78.64
46) -0.06 * 3 -0.18
47) 1833 + -172 1661
48) 80.5 - 0.47 80.03
49) 2.9 * 5 14.5
50) 5 - -8419 8424
51) 0.001 * 5214 5.214
52) 822 + 912 1734
53) 7 - 964 -957
54) -0.001 * -999 0.999
55) 2 - -34 36
56) 4902 - 4 4898
57) 578 / -1 -578
58) 202 / 1 202
59) 350 + -354 -4
60) -3 * -5.4 16.2
61) -0.05 + -0.2 -0.25
62) 0.578 - 0.07 0.508
63) -549 + 1 -548
64) 328.3 + -50.8 277.5
65) 9.9 + 9 18.9
66) 4127 + 9 4136
67) -0.3 - 71 -71.3
68) 2 / 0.08 25
69) 48 - -8 56
70) 61 - -16.66 77.66
71) 9.12 + -0.6 8.52
72) -4.3 - 1.14 -5.44
73) 15 + 638 653
74) 0.02 + -0.03 -0.01
75) -487 * -0.009 4.383
76) -0.31 / -0.008 38.75
77) 34 - 85.2 -51.2
78) 0.72 * 82 59.04
79) 0.01 - 4 -3.99
80) 6 - -474 480


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