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) 0.5 + 101 101.5
2) 6 - 0.052 5.948
3) 2 + 0.083 2.083
4) 77.56 - 9 68.56
5) 6601 + -9 6592
6) 9 + 0.67 9.67
7) 3 * 0.3 0.9
8) -2 + 749.2 747.2
9) -4 - 0.81 -4.81
10) 8170 + -9 8161
11) 7.98 + -5 2.98
12) 8 + -0.074 7.926
13) 88.6 - -0.8 89.4
14) 5908 - 7 5901
15) 2.271 + 2 4.271
16) 5 - 0.53 4.47
17) 997 - -5 1002
18) 0.008 + 0.6 0.608
19) 0.1 * 3 0.3
20) 81 * 0.4 32.4
21) 5 - -2.96 7.96
22) 2 - -97.25 99.25
23) -69 * -63 4347
24) -88 + 18.6 -69.4
25) -251 + -89 -340
26) 57.2 + 97 154.2
27) 0.02 + 8.36 8.38
28) -6 - -59 53
29) -9.44 - -3 -6.44
30) 0.029 * 3 0.087
31) 2506 - 585 1921
32) 4 + 0.01 4.01
33) 0.6 - 0.016 0.584
34) 93 + 9081 9174
35) 745 - 85 660
36) 23.7 + 0.58 24.28
37) 26 * -0.005 -0.13
38) 0.644 + -0.017 0.627
39) 8 - -99 107
40) -1 * 59 -59
41) 0.4 + 8.94 9.34
42) 9.431 - 0.16 9.271
43) 95 - 837 -742
44) 62 * 0.091 5.642
45) 3.4 - 0.002 3.398
46) 9 - 0.02 8.98
47) 2540 - -578 3118
48) -48 - 4 -52
49) -54.9 + 346 291.1
50) -4 * -0.39 1.56
51) 574 - 5 569
52) 528 + 0.4 528.4
53) -8 * 102 -816
54) 89 - 38 51
55) 87 + 4 91
56) 37 - 6.24 30.76
57) -93 + -4 -97
58) 0.77 + -4.52 -3.75
59) 654 + 2884 3538
60) 6.51 - 4.6 1.91
61) 74 + 898.7 972.7
62) -1 / 5 -0.2
63) 6 * -89 -534
64) 89 / 0.05 1780
65) 2517 * 2 5034
66) 41 - 0.1 40.9
67) -975 + 9748 8773
68) -21 - 77 -98
69) 8 + 192 200
70) -45 - 0.7 -45.7
71) 0.715 + 2 2.715
72) -69 - 5 -74
73) 610 - 6 604
74) 961 + -2 959
75) -30 / -4 7.5
76) 0.07 + 1.1 1.17
77) 2 - -0.002 2.002
78) 2427 + -6 2421
79) 5 * 0.18 0.9
80) 20.31 + 0.01 20.32


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