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) 233 - 376 -143
2) 0.03 + 85 85.03
3) 8937 - 8 8929
4) 785 + -166 619
5) 83.85 - -0.01 83.86
6) -34 * -7 238
7) 437.6 + 34 471.6
8) 637 - -8 645
9) -0.04 * -91 3.64
10) 6 + 0.758 6.758
11) -5 / 1 -5
12) -33 - -2474 2441
13) 2 * 152.9 305.8
14) 39.8 + 8.6 48.4
15) 365 - -988 1353
16) 3 * 2.25 6.75
17) -5 * 25 -125
18) 4.5 - -77 81.5
19) 8 / -0.5 -16
20) 5.2 + 0.31 5.51
21) 1690 - 983 707
22) 0.84 + 0.442 1.282
23) 2.7 + 0.31 3.01
24) 2349 - -61 2410
25) 71 + 420.7 491.7
26) 6.55 * 0.5 3.275
27) 4.7 / -0.01 -470
28) 570.6 - 6 564.6
29) -7 * -0.04 0.28
30) 0.01 - 4 -3.99
31) -385 + 2 -383
32) 6 - -609 615
33) 93.1 + -62 31.1
34) 0.04 * 45 1.8
35) -5 + -4 -9
36) 0.6 + 33 33.6
37) -0.06 / 0.003 -20
38) 6.841 + 0.1 6.941
39) 4 - 48 -44
40) 0.2 + 7.439 7.639
41) 0.9 - -0.09 0.99
42) 9 * 658 5922
43) 527 + 7242 7769
44) 0.003 / 1 0.003
45) 0.002 + 4 4.002
46) -57.8 - -3 -54.8
47) 40 - 246 -206
48) 821 + 3 824
49) 20 + -38.3 -18.3
50) 0.08 + 27.28 27.36
51) 7.1 - 0.006 7.094
52) 0.09 - 9 -8.91
53) 9 + 990 999
54) 8034 / 300 26.78
55) 539.1 + 85.9 625
56) 2 * -68 -136
57) 8 + 5.7 13.7
58) 3.7 - 0.973 2.727
59) 748.8 + 79 827.8
60) 0.81 + 63 63.81
61) 9 + 84.2 93.2
62) 873.6 - 69 804.6
63) -3 / 0.008 -375
64) 32 - 4.89 27.11
65) -0.61 + 8 7.39
66) 0.2 - 9 -8.8
67) 4.023 - 0.09 3.933
68) 106 + 9.6 115.6
69) 0.096 - -9.238 9.334
70) 0.007 + 2 2.007
71) 8 - 7 1
72) -0.3 - -16 15.7
73) 18 + -1 17
74) 942 - 656.1 285.9
75) -0.8 + 32 31.2
76) 0.17 - -4 4.17
77) 0.4 + -8 -7.6
78) 0.085 + 0.09 0.175
79) -0.3 + -3.03 -3.33
80) 97 - -86 183


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