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 * -0.28 -1.12
2) -0.34 * 0.5 -0.17
3) 78 - -0.68 78.68
4) -816 + 8 -808
5) 6 - 9 -3
6) 0.94 + -0.826 0.114
7) 3.78 + 3.13 6.91
8) 3 + 5.7 8.7
9) 0.8 - -0.05 0.85
10) 12.8 + -7 5.8
11) 4.25 - -30 34.25
12) 0.564 + 0.004 0.568
13) -6 / -40 0.15
14) 45 - -8.51 53.51
15) 207 - -89 296
16) 63.1 - 6.22 56.88
17) 0.05 - -59 59.05
18) -415 - 2 -417
19) 150 + -2 148
20) 134 - -49 183
21) -1.8 - 4 -5.8
22) 80 - 12 68
23) -3.59 - -65 61.41
24) 3 * 2804 8412
25) 0.534 + 4.2 4.734
26) -1 / -2 0.5
27) -809 + 9 -800
28) 9025 - -6 9031
29) 0.954 + 0.64 1.594
30) 5 - 516 -511
31) 1 * -445 -445
32) 26 * 0.8 20.8
33) -37 * 2 -74
34) 0.9 - 5.8 -4.9
35) -6 - 519 -525
36) -4.2 + 603 598.8
37) -545 * -0.3 163.5
38) -1.2 - 91.9 -93.1
39) 0.3 * 5 1.5
40) 243 + -2 241
41) 3 - 0.03 2.97
42) 8 / 3.2 2.5
43) 2 + -0.049 1.951
44) -0.6 + -0.2 -0.8
45) 73 - -88 161
46) 6305 - 401 5904
47) 48 + 84.7 132.7
48) 125 - 433 -308
49) 7 * 6 42
50) -26 + 8 -18
51) -2 - 64 -66
52) 57 + 32 89
53) 829.6 - 6.3 823.3
54) 0.007 + 0.06 0.067
55) 0.3 * 1 0.3
56) 489 + -1 488
57) 351 * 4 1404
58) 5679 + 329 6008
59) 6 - -43 49
60) -0.005 + 0.7 0.695
61) 37.2 - 46.7 -9.5
62) -3.46 - 2 -5.46
63) 59 + 82 141
64) 9 * 721 6489
65) -6 - 370 -376
66) 9.06 * 0.4 3.624
67) 5 - 306 -301
68) 71.76 + -0.27 71.49
69) 4.2 + 0.03 4.23
70) -0.106 - -8 7.894
71) 4 - -892 896
72) 90 / 0.8 112.5
73) 118 - 43 75
74) 0.08 - 5 -4.92
75) 39 + -212 -173
76) 0.2 - -762 762.2
77) 0.005 / -0.001 -5
78) 282 + -37 245
79) 0.32 * 8 2.56
80) 3.8 * 60 228


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