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) -5.9 + 3 -2.9
2) 6.201 / 477 0.013
3) -16 - 591 -607
4) -5.06 - -9 3.94
5) 4 + -69 -65
6) -0.28 * 8 -2.24
7) 796 - 9 787
8) 374 * 0.4 149.6
9) -488 - -932 444
10) 15.27 + 0.1 15.37
11) 52 - 11.34 40.66
12) 6 + -3.34 2.66
13) -0.35 - 0.7 -1.05
14) -0.9 + 8.73 7.83
15) 0.063 - 0.06 0.003
16) -2 / 4 -0.5
17) 49.2 + 6.4 55.6
18) 1161 - -48 1209
19) 6508 - -1 6509
20) -3 * 0.06 -0.18
21) 0.05 / 0.08 0.625
22) -4 - 59 -63
23) 24 * 3 72
24) -265 + -99 -364
25) 0.4 - -7 7.4
26) -5 + 0.14 -4.86
27) 22 - -481 503
28) 2 - -1.028 3.028
29) 1 * 0.582 0.582
30) 2.245 - 0.07 2.175
31) 2 - 64 -62
32) 0.71 + 18 18.71
33) -4 - 0.95 -4.95
34) 6 - 97.2 -91.2
35) 86.62 + 1 87.62
36) 4 + -176 -172
37) 4.8 + 0.31 5.11
38) 1 - -4.183 5.183
39) 0.7 + 0.007 0.707
40) 4523 + 5 4528
41) 4.5 * 46 207
42) -6.8 * 40 -272
43) 2.8 - 7.7 -4.9
44) 1 * 0.06 0.06
45) 389 + 9 398
46) 90.9 * 1 90.9
47) 570 - 0.8 569.2
48) 87 + -73.04 13.96
49) 180 - 791 -611
50) 6.12 * 0.6 3.672
51) 9218 + 227 9445
52) 27 - 5.53 21.47
53) 169 / 5 33.8
54) 0.051 + 0.58 0.631
55) 495.3 + 343 838.3
56) 4.9 - 2.76 2.14
57) 1.65 / 5 0.33
58) 426 / 3 142
59) 3.7 - -0.98 4.68
60) 9 * 18.6 167.4
61) 3.3 / 0.08 41.25
62) 0.007 + 8.57 8.577
63) 0.009 * 6 0.054
64) 14 + 21.69 35.69
65) 9.3 + 6.45 15.75
66) 25 / 2 12.5
67) -46 + 4 -42
68) 81.7 + -8.8 72.9
69) 22 * 55 1210
70) 3 * -0.9 -2.7
71) -0.07 + 0.01 -0.06
72) 9.131 + -6.2 2.931
73) 2.5 + 1.126 3.626
74) 25.65 - 19.1 6.55
75) -0.1 + 75 74.9
76) 0.1 - 3 -2.9
77) 0.09 + 0.006 0.096
78) -64 + -7 -71
79) -0.08 * -26.85 2.148
80) 3.3 - 0.514 2.786


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