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) -4.4 + 1 -3.4
2) 0.4 * 11.09 4.436
3) -2 + -70.5 -72.5
4) -0.04 - -5.3 5.26
5) 0.07 + -8.45 -8.38
6) 18 - 80 -62
7) 27 - 97 -70
8) -0.065 * -688 44.72
9) 61 + -0.6 60.4
10) 2.22 - -0.02 2.24
11) -4 * 7 -28
12) 50 - 556 -506
13) -91 * -7.4 673.4
14) -84 - 8.6 -92.6
15) 0.2 + -2 -1.8
16) -9.6 - 3.6 -13.2
17) 405 + -8.2 396.8
18) -7 * 0.07 -0.49
19) 692 + -12 680
20) 45 - 4 41
21) 6.2 + 146 152.2
22) -754 + 9 -745
23) -47 * -0.09 4.23
24) -985 + 3 -982
25) -0.6 + 0.6 0
26) 0.82 - -0.05 0.87
27) -56.4 / 0.6 -94
28) -1.6 - -0.2 -1.4
29) 8.732 - 0.09 8.642
30) 17 + -0.8 16.2
31) 90.22 + -52 38.22
32) 727 * 0.09 65.43
33) -8416 / -8 1052
34) 707 + 7.4 714.4
35) -8 * -0.007 0.056
36) 0.8 + 2 2.8
37) 648 * 0.04 25.92
38) 284 + -424 -140
39) 1 * 0.74 0.74
40) -3 * 6.1 -18.3
41) -2.76 - -7.73 4.97
42) 92.4 - 2 90.4
43) 62 - 14 48
44) -50 + -3 -53
45) 0.007 + 0.7 0.707
46) 2 * -4 -8
47) -1 + -216 -217
48) -50 * 0.02 -1
49) 49.8 / 5 9.96
50) 8.6 + -0.03 8.57
51) -9.46 - -4 -5.46
52) -26 + 509 483
53) 35 - -2 37
54) 0.6 + 14 14.6
55) 4 - 3.59 0.41
56) 78.2 + 74 152.2
57) 69 - 0.4 68.6
58) 2 - -989.4 991.4
59) 15.3 / 10 1.53
60) 94 + -0.74 93.26
61) 5 - -3.462 8.462
62) 6.776 - -2 8.776
63) -83 * 0.06 -4.98
64) -9 - 70 -79
65) 4829 + 7 4836
66) -763 + 9908 9145
67) 0.4 / -0.08 -5
68) -2 * -0.6 1.2
69) 2 * 918 1836
70) 46.9 - 0.39 46.51
71) 690 / 6 115
72) -92 - 802 -894
73) 4.8 + 0.005 4.805
74) 87.74 - 5 82.74
75) 2.2 + -0.027 2.173
76) -0.076 - -0.1 0.024
77) 5.48 - -6 11.48
78) 6 + 3482 3488
79) 0.727 + 1 1.727
80) -974 + 383 -591


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