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) 0.02 * -93 -1.86
2) 51 + 56.7 107.7
3) 3 - 373 -370
4) 0.36 - -44 44.36
5) -98 / -5 19.6
6) -0.009 - -0.045 0.036
7) 73 + -6 67
8) 0.006 - -6.79 6.796
9) 67 + 934 1001
10) -0.6 * -1.55 0.93
11) 1.5 - -183.7 185.2
12) 6 / 0.08 75
13) 0.92 + 70 70.92
14) 3 * 3.46 10.38
15) -19.97 - 0.03 -20
16) 0.6 / 0.06 10
17) 73 - -9.2 82.2
18) 0.7 + 8 8.7
19) 61 * 4 244
20) -0.9 + -0.03 -0.93
21) 88 * 0.04 3.52
22) 510 * 6 3060
23) 0.03 * 14.1 0.423
24) 0.8 - -0.4 1.2
25) 0.23 * 2 0.46
26) -0.68 - -70 69.32
27) 2 * 22 44
28) 2 + 20.04 22.04
29) 21 / -210 -0.1
30) 0.618 - 0.617 0.001
31) 0.3 + 6 6.3
32) 148 * 0.007 1.036
33) 0.9 / 2 0.45
34) 4.1 - 1.1 3
35) 0.01 + -2 -1.99
36) -9.61 + 0.5 -9.11
37) 1.56 - 1 0.56
38) -0.493 * -8 3.944
39) 265 - 274 -9
40) 64 + 0.07 64.07
41) -37 * -8 296
42) 970 + -4.3 965.7
43) 13 + 3270 3283
44) 1.9 + 586.8 588.7
45) 14 / 5 2.8
46) 0.62 - -2.4 3.02
47) 2 + 0.21 2.21
48) 497 + 8.3 505.3
49) 26 - -57 83
50) -8 - 0.7 -8.7
51) 525 / 0.07 7500
52) 0.355 + 8 8.355
53) 0.26 - -1.58 1.84
54) 94 * 0.09 8.46
55) 7 + 0.38 7.38
56) 17.2 - 57 -39.8
57) 9 + 0.5 9.5
58) 9.1 - 6 3.1
59) 7 * 0.741 5.187
60) -0.31 - -5.379 5.069
61) 8 - -791 799
62) 5897 - -1285 7182
63) 16.78 + 47 63.78
64) -944 + 68 -876
65) -7.52 - -89.12 81.6
66) 307 + -36 271
67) 6 * -0.03 -0.18
68) 3 * -8 -24
69) -3 + -5 -8
70) 86 + 4.2 90.2
71) 0.06 * 1 0.06
72) 88.05 - 11 77.05
73) -0.984 * 5 -4.92
74) 0.5 + 4 4.5
75) 0.3 - 7 -6.7
76) 5 + 46.5 51.5
77) 0.007 - -2 2.007
78) 0.03 - 7 -6.97
79) 194 + 92 286
80) -0.5 - -87 86.5


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