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) -0.01 * 8040 -80.4
2) -5 - 72 -77
3) 9.5 + 2 11.5
4) -0.02 - -0.031 0.011
5) 0.622 - -2.66 3.282
6) 0.008 - -1.6 1.608
7) 495 / -3 -165
8) -0.22 * -7 1.54
9) 3.5 + 9 12.5
10) 34.3 - -0.02 34.32
11) 91 - 35.42 55.58
12) 77 / 7 11
13) 3 - 9 -6
14) 0.8 + -61 -60.2
15) 603.2 + 21 624.2
16) 99 + 4 103
17) 2.1 * 1.4 2.94
18) 0.05 * 310 15.5
19) -900 / 5 -180
20) 7 + 4.5 11.5
21) -43 + 97.43 54.43
22) 5 + 0.088 5.088
23) 72 / 0.3 240
24) -2 * 86 -172
25) 8.4 / 2 4.2
26) 0.23 - -3.621 3.851
27) 42.75 - 6 36.75
28) -0.27 + 2 1.73
29) 6194 * 1 6194
30) 75.8 + -0.85 74.95
31) 0.61 / 5 0.122
32) -0.9 + 641 640.1
33) 6739 - 4894 1845
34) -5 * 1 -5
35) -2123 / -44 48.25
36) 8 + 63 71
37) 662 + 69 731
38) 83 - 9 74
39) -262 + 66 -196
40) 0.1 / 10 0.01
41) -62 - 5 -67
42) 6.361 - 0.008 6.353
43) 0.817 + 1.83 2.647
44) 0.078 + 1.85 1.928
45) 129 * 0.06 7.74
46) 6 - 535 -529
47) -4 + 0.08 -3.92
48) -1 + -791 -792
49) -0.7 * 0.3 -0.21
50) 9 * 0.209 1.881
51) -6 + 9549 9543
52) 0.4 * 5.4 2.16
53) 0.003 - -4.115 4.118
54) 80 - 31.3 48.7
55) 1 + 847 848
56) -2 + 94 92
57) 0.08 / -4 -0.02
58) 3 - 4.8 -1.8
59) -5 * 0.7 -3.5
60) -8.5 + -0.09 -8.59
61) 8 + 4 12
62) -0.09 / -0.06 1.5
63) 5 * -0.03 -0.15
64) 7 + -0.318 6.682
65) -4 + 50 46
66) 0.6 * -80 -48
67) 873 * 8 6984
68) 4 - 873 -869
69) -0.074 - -0.55 0.476
70) 7 * 4.2 29.4
71) 0.04 / -2 -0.02
72) 254 + 2452 2706
73) 22 * -8 -176
74) 194 - -7774 7968
75) 0.3 + 3 3.3
76) 2 * 26 52
77) 7 * 0.094 0.658
78) -8 - 73 -81
79) -0.3 - 34.9 -35.2
80) 1634 + 394 2028


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