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) 30.8 - 0.8 30
2) 4.71 + 0.004 4.714
3) 5 - -99 104
4) 0.2 / 5 0.04
5) 18 * -5 -90
6) 18 * 24 432
7) 54 - 0.62 53.38
8) 8.23 * -1 -8.23
9) -84 - 3 -87
10) 0.02 - -28.34 28.36
11) 7 / -0.2 -35
12) 0.003 - -1 1.003
13) 4443 + -8 4435
14) -6 + 7.11 1.11
15) 0.059 - -0.009 0.068
16) 4.5 - 0.082 4.418
17) 0.048 + 3 3.048
18) 9 + 0.28 9.28
19) -97 + 445.7 348.7
20) 2 - -8.6 10.6
21) -7 + 1.2 -5.8
22) -96.39 / -85 1.134
23) -0.926 + 4 3.074
24) -9 * -79 711
25) -72 / -0.09 800
26) 14 - -35 49
27) 4 * 46 184
28) 0.003 * 1439 4.317
29) 0.6 + -51 -50.4
30) 88.2 * 4.5 396.9
31) 91 * 0.006 0.546
32) 0.08 + 78 78.08
33) 9 * -95 -855
34) 15 * -0.07 -1.05
35) 9 + -0.04 8.96
36) 4.667 - 0.873 3.794
37) -0.06 / 0.06 -1
38) -0.74 + 14.83 14.09
39) 18.4 + 3 21.4
40) 720 / -1 -720
41) 0.4 + -8.05 -7.65
42) 72 - 0.96 71.04
43) -0.009 - -0.066 0.057
44) 61 - 0.2 60.8
45) -4.82 + 0.66 -4.16
46) 82.3 - 64 18.3
47) 90 * 91.7 8253
48) 8.4 + 9 17.4
49) 0.7 - -75 75.7
50) 86 * 0.6 51.6
51) 0.005 * 7 0.035
52) 67 - 934 -867
53) 5448 + 42 5490
54) 9.8 - 0.096 9.704
55) 9 + 5209 5218
56) -515 - -9 -506
57) 2.24 + 0.79 3.03
58) 2 + 0.78 2.78
59) 30.6 - 10.85 19.75
60) -2 / 4 -0.5
61) 0.003 * 86 0.258
62) 29 + -37 -8
63) 4 - 228 -224
64) 2.7 + 0.041 2.741
65) 0.5 * 82 41
66) 5 - 37 -32
67) 78.63 + 8 86.63
68) 154 / 0.07 2200
69) 4 + 15 19
70) -6.6 - -3 -3.6
71) 59 / 0.8 73.75
72) 850 - -64 914
73) -0.6 * 1 -0.6
74) -723.2 - -48.2 -675
75) 7.4 + 32.3 39.7
76) 2 * 93 186
77) 17.8 + 3 20.8
78) 0.3 * 8 2.4
79) 0.4 - 87.3 -86.9
80) 0.34 * 7 2.38


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