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) 80 * -0.1 -8
2) 821 - 294 527
3) 0.02 * -299 -5.98
4) 1078 * 0.001 1.078
5) 1 + 0.002 1.002
6) -0.008 - -1.1 1.092
7) -0.4 - 76 -76.4
8) 0.152 + -0.02 0.132
9) -0.026 + 5.3 5.274
10) 97 - -84 181
11) 132 * 0.061 8.052
12) 0.02 + 78 78.02
13) 20 + 6.75 26.75
14) 0.21 / -0.005 -42
15) 7286 - 63 7223
16) 692 + 749 1441
17) 0.8 + -0.4 0.4
18) 1 * 2 2
19) 55.75 + 0.3 56.05
20) 9 - -62 71
21) 75 * -0.7 -52.5
22) 0.3 + -4 -3.7
23) 0.851 + 0.553 1.404
24) 584 + 7448 8032
25) 87 * -0.08 -6.96
26) 0.08 + 49 49.08
27) -34.6 - 52 -86.6
28) 7 / 1 7
29) -795 + -7 -802
30) 34 / 0.25 136
31) 56 - -2496 2552
32) 24.3 + 0.7 25
33) 0.8 * 641 512.8
34) 5 + 500 505
35) -0.006 + 0.01 0.004
36) -52 / 2 -26
37) -6 + 5 -1
38) 7605 + 18 7623
39) 4 - 3 1
40) 5 + 0.58 5.58
41) 21 + 976 997
42) -82 + 1 -81
43) 5.8 - -9.76 15.56
44) 73 - -4 77
45) 52.96 + 6.02 58.98
46) 0.917 + 0.008 0.925
47) 1104 * 9 9936
48) 70 + -873 -803
49) -3 - 7 -10
50) 507 * 0.19 96.33
51) 0.6 * -125 -75
52) 3 - 4.19 -1.19
53) 7 + -7 0
54) 0.01 * -5 -0.05
55) -13.2 - -428 414.8
56) 25 * 0.071 1.775
57) 812.4 - -33.6 846
58) 2 + -0.03 1.97
59) -15.12 - -7.1 -8.02
60) -56 * -0.76 42.56
61) -30 - -9 -21
62) 0.42 - 0.7 -0.28
63) 8 - -31 39
64) 43.74 - 48 -4.26
65) 0.06 * 15.3 0.918
66) 1.7 / 0.004 425
67) 0.375 + 0.08 0.455
68) 0.22 + 0.6 0.82
69) 304 + 5 309
70) -5 - -1478 1473
71) 16 - -32 48
72) 59 - -310 369
73) 77 * 8 616
74) -4.21 + 3.7 -0.51
75) -0.7 * -3.04 2.128
76) 3367 + -37 3330
77) 6 * 0.1 0.6
78) 20.9 - 2.53 18.37
79) 2 + 0.02 2.02
80) 88 - 86.3 1.7


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