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) -3 / 0.4 -7.5
2) 0.4 * 0.1 0.04
3) 83 * 0.52 43.16
4) -0.359 * -9 3.231
5) -828 + -96 -924
6) -6 - -26.7 20.7
7) 0.004 + 5 5.004
8) 7.1 / 0.1 71
9) 0.9 + 43 43.9
10) 3.73 - 6 -2.27
11) 8.39 + -0.008 8.382
12) -3.77 - -8.01 4.24
13) 1884 - 7 1877
14) 0.01 / 5 0.002
15) -94 * 0.7 -65.8
16) 5 * 676 3380
17) 0.72 + -3.05 -2.33
18) 8 + -358 -350
19) -49 + -7 -56
20) 0.07 + -3 -2.93
21) -89 / -20 4.45
22) 2 - 9 -7
23) -56.3 + 839 782.7
24) 2.04 - -27 29.04
25) -0.07 + 3 2.93
26) 7 * -6 -42
27) 0.384 + -0.028 0.356
28) -1221 + 364 -857
29) -8 - -33 25
30) 1096 / 1 1096
31) -186 / -3 62
32) 4 + 21 25
33) 35 - -9.55 44.55
34) 68.84 / 1 68.84
35) -1.71 * 5 -8.55
36) 3 - 2 1
37) 77 * -2 -154
38) 7 * 8.28 57.96
39) 60 - 72 -12
40) 64 + 12 76
41) 323 * 9 2907
42) 8 - -0.018 8.018
43) -0.016 + 0.2 0.184
44) -47 * -2 94
45) 3 + -2.7 0.3
46) 6692 - -57 6749
47) -67.6 + 4.2 -63.4
48) 9.6 / 5 1.92
49) 4 + 553 557
50) -0.047 + 1.03 0.983
51) 0.08 * -9 -0.72
52) -0.09 + 92 91.91
53) 129 / 2 64.5
54) 4.5 - -0.79 5.29
55) 1556 * 1 1556
56) 4.9 + -2 2.9
57) 4.89 + -5.7 -0.81
58) 0.06 - -0.9 0.96
59) 9174 + 87 9261
60) 0.52 + 0.35 0.87
61) 0.73 - -81.9 82.63
62) -34 - -6492 6458
63) 0.96 - -6.46 7.42
64) -158 + 192 34
65) 734 + 77 811
66) 0.689 - 0.002 0.687
67) 7 * 4.77 33.39
68) 9 + 6175 6184
69) 7.1 + 88 95.1
70) 0.6 + 0.005 0.605
71) 0.3 * 34 10.2
72) -7 + 0.1 -6.9
73) 9 * -87 -783
74) 4 + 885.8 889.8
75) 6 * 0.062 0.372
76) 545 + 62 607
77) -87 * -5.6 487.2
78) 14.8 - -143 157.8
79) -84 * -5.5 462
80) -50 * 0.1 -5


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