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) 0.04 + 5 5.04
2) 0.9 - 7 -6.1
3) 32 + 0.02 32.02
4) 2 / 0.05 40
5) 8 - 5.974 2.026
6) 4 + 90.04 94.04
7) 271 - -8686 8957
8) 218.2 + 221.2 439.4
9) 0.09 / 0.5 0.18
10) -6 + 15.78 9.78
11) 3 + 77.63 80.63
12) 0.1 + -0.091 0.009
13) 4 + 7 11
14) 73 - -3 76
15) -0.04 + 7 6.96
16) -10.6 + 47 36.4
17) 594 + 6763 7357
18) 0.09 * 14 1.26
19) 28.46 - 4 24.46
20) 0.684 + 0.03 0.714
21) 743 * 1 743
22) -0.07 + -9 -9.07
23) -7 + 31.51 24.51
24) 5.161 * 1 5.161
25) -31 * 11 -341
26) -376 - 85 -461
27) 1 + 5 6
28) -1 - 41 -42
29) 55 + -0.7 54.3
30) 652.2 - 8 644.2
31) -3 * 60 -180
32) -488 + 991 503
33) 0.8 + -0.04 0.76
34) 598 - -4 602
35) 554 * 7 3878
36) -386 + 872.7 486.7
37) 42 - 3.3 38.7
38) 212 + 127 339
39) -0.06 + 41.05 40.99
40) 7.83 + 0.09 7.92
41) 830.7 - 241 589.7
42) -13 - 0.4 -13.4
43) 0.2 - 0.016 0.184
44) 0.76 - 0.05 0.71
45) 1 * 0.842 0.842
46) -89.8 - 3 -92.8
47) 70 + -63 7
48) 55 - -441 496
49) 8.4 + -8.01 0.39
50) -84 + 181.9 97.9
51) 4 * 0.31 1.24
52) -0.09 - 0.07 -0.16
53) -0.03 / -0.3 0.1
54) 138 * 1 138
55) 72 + 39 111
56) 78.2 * 90 7038
57) 7011 + 923 7934
58) 154 * 8 1232
59) -2 * 0.05 -0.1
60) 8 * 0.094 0.752
61) 0.1 - -2 2.1
62) 3 + 767.5 770.5
63) -4 * -0.002 0.008
64) 4014 / 50 80.28
65) -0.032 + 4 3.968
66) 5 * 392 1960
67) -3.49 - -2 -1.49
68) -0.7 * -1.1 0.77
69) 0.05 - 0.2 -0.15
70) 0.6 + -58 -57.4
71) 9 - 0.534 8.466
72) 85 + 0.84 85.84
73) -6.9 + 49.4 42.5
74) 621 - 7 614
75) -7.1 + -86.8 -93.9
76) 206 + -743 -537
77) 99.85 - 79 20.85
78) 24 + 56 80
79) 8 * 6 48
80) 5459 - 28 5431


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