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) 0.5 * 0.002 0.001
2) 974 / 2 487
3) 25 - 71 -46
4) -0.06 * 6 -0.36
5) 3730 / 2 1865
6) 5 * 44 220
7) 9.966 + -1 8.966
8) 0.034 * -280 -9.52
9) 7.2 + 4.2 11.4
10) 9.4 + 0.002 9.402
11) -0.1 - 0.4 -0.5
12) 0.1 * -0.3 -0.03
13) 1998 - 93 1905
14) 627 + 8.4 635.4
15) -36.2 - -5 -31.2
16) 169.1 - 47.9 121.2
17) 55 * 3 165
18) 4 + 7.95 11.95
19) 3 * 12 36
20) -2 * 38 -76
21) -183 + 566 383
22) -0.1 - -0.01 -0.09
23) 6 / 1 6
24) 19 + 5.58 24.58
25) 58 * 27 1566
26) 0.7 + -0.18 0.52
27) 68.9 - 52 16.9
28) -7.1 * 2 -14.2
29) 8598 + 74 8672
30) 9.49 - 0.74 8.75
31) -89 * 9 -801
32) 8450 / 1 8450
33) 81 - 7.2 73.8
34) -33 / 1 -33
35) 7.3 + -2 5.3
36) 3 * 0.08 0.24
37) -870 - 9 -879
38) -5 - 97 -102
39) -171 * -16 2736
40) -8 - 92 -100
41) 6 * 1033 6198
42) 79 / 10 7.9
43) 0.007 + 1.8 1.807
44) -768 - 2 -770
45) 6 + -0.9 5.1
46) 3 + 8.63 11.63
47) -610 * 0.1 -61
48) 0.11 + 6.3 6.41
49) 4 - 0.46 3.54
50) 5 - -6052 6057
51) -2 - 531 -533
52) 5.17 + 0.5 5.67
53) 7.752 - 0.082 7.67
54) -0.09 + 84 83.91
55) 6024 - -7 6031
56) 800 - -96.2 896.2
57) -706 + 780 74
58) 43.4 - 92.5 -49.1
59) 133 + 24 157
60) 1 * 0.03 0.03
61) 3 - -0.052 3.052
62) 0.9 - 0.02 0.88
63) 139.4 + -62 77.4
64) -520 + 4571 4051
65) -2.1 * -0.05 0.105
66) 8.134 - 4.4 3.734
67) -516.5 + 771 254.5
68) 0.01 * 4.6 0.046
69) 10 - -729 739
70) 58 / 1 58
71) 7643 + 37 7680
72) 5 * -92 -460
73) -5 - 8 -13
74) 77 / 8 9.625
75) 8.3 + 48.35 56.65
76) 7105 - 9 7096
77) -0.9 + 792 791.1
78) 5967 + -75 5892
79) 4 - -1 5
80) 0.8 / 5 0.16


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