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) 91 - -93 184
2) -3 * 0.06 -0.18
3) -780 + -79 -859
4) -97 + 445.5 348.5
5) 6 + 6.23 12.23
6) 0.2 * -404 -80.8
7) -4.1 - -44 39.9
8) 46 - 965 -919
9) 4296 - 5 4291
10) 27.4 + 0.9 28.3
11) 541 * 0.3 162.3
12) 37.46 - 45.68 -8.22
13) 7 * 5 35
14) 90 - -0.44 90.44
15) -0.05 - -39.33 39.28
16) 0.9 * 5 4.5
17) -5 + 4484 4479
18) 942 * 0.025 23.55
19) 491 * 0.2 98.2
20) 68.08 + 1.06 69.14
21) -2 * -0.928 1.856
22) 4 - -4025 4029
23) 422.9 - 49 373.9
24) 21.5 * -38 -817
25) 0.9 - 8 -7.1
26) 0.006 * 2 0.012
27) 74 - 6 68
28) 0.05 + -0.008 0.042
29) 490 - 0.1 489.9
30) 3925 - 9 3916
31) 50 + 2.29 52.29
32) 4 - -8.02 12.02
33) 452 * 3 1356
34) 1 * 7.118 7.118
35) 8 * -2.7 -21.6
36) -63 + 2.8 -60.2
37) -32 - -698 666
38) 24 - 9 15
39) -23.66 - -0.96 -22.7
40) 4.9 + 17.88 22.78
41) -6 - 163 -169
42) 2658 - 3 2655
43) 58 + 5 63
44) 0.1 - 9 -8.9
45) 7 + 14 21
46) 9 - -6140 6149
47) 0.003 + 0.05 0.053
48) 0.71 - 6 -5.29
49) -0.062 + 4.548 4.486
50) 7 * 0.85 5.95
51) 46.21 - -33.3 79.51
52) 0.001 + 0.008 0.009
53) 0.3 - -0.09 0.39
54) 0.107 + 1.27 1.377
55) 9875 + 8 9883
56) -179 * -8 1432
57) 0.3 * 9.08 2.724
58) 7505 - 6457 1048
59) 508 + 2 510
60) 0.8 + 7 7.8
61) -3 - -30 27
62) 0.098 / 0.5 0.196
63) 42 - 9.6 32.4
64) 4.9 - 96 -91.1
65) 8 * -0.16 -1.28
66) 39 * 22 858
67) 8 + 3 11
68) 2 - -3.6 5.6
69) 0.3 + -2 -1.7
70) 317.5 - -8 325.5
71) 0.07 + 38.66 38.73
72) 6 - -7512 7518
73) -183 / -2 91.5
74) 0.2 - 7.4 -7.2
75) 0.236 * 6 1.416
76) 2132 - -375 2507
77) 0.05 - -63 63.05
78) 6 - 655 -649
79) -7.9 + -91 -98.9
80) 2 * 103 206


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