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 - -500 500.5
2) -0.7 - 45 -45.7
3) 769 - 2 767
4) 0.045 - -9.85 9.895
5) 7417 + 90 7507
6) 0.7 - 61 -60.3
7) -2 + -0.6 -2.6
8) 0.84 - -0.7 1.54
9) 4.6 / 1 4.6
10) 0.3 - 0.071 0.229
11) 4 + 0.001 4.001
12) -0.1 - 0.96 -1.06
13) 8344 + -1322 7022
14) -51.6 - 3.7 -55.3
15) 1 * 0.009 0.009
16) 0.82 - 1 -0.18
17) 7426 - 698 6728
18) 993 - 534.8 458.2
19) 9 - -4 13
20) 1 * 0.09 0.09
21) 905 + -38 867
22) 30.6 + -9 21.6
23) -11 - 3 -14
24) 5 / -4 -1.25
25) -88 + 74 -14
26) 7 * 8 56
27) 322 * 0.16 51.52
28) -731 / -1 731
29) -2.7 - -0.99 -1.71
30) 491 + -423 68
31) -3 * 254 -762
32) -3.5 * -1 3.5
33) -49.5 + 0.9 -48.6
34) -3 + -387 -390
35) 0.2 / -0.5 -0.4
36) 3 + 0.032 3.032
37) -2 + 4 2
38) 22 + 4.4 26.4
39) 347 + -730 -383
40) 0.032 + 2 2.032
41) 26 * 1 26
42) -0.02 + 0.205 0.185
43) 0.074 * 915 67.71
44) 93.2 + 7 100.2
45) -55.7 - 2 -57.7
46) -80 / 4 -20
47) 5110 - 8 5102
48) 0.51 + 3.46 3.97
49) -0.002 + 1 0.998
50) 23.4 + 57 80.4
51) 96 + -8 88
52) -0.3 + 1 0.7
53) -0.3 * 18 -5.4
54) -9 / -0.3 30
55) 7 - -71 78
56) -1.94 - -0.07 -1.87
57) 7.9 * 9 71.1
58) -0.02 * 19 -0.38
59) 75 - 28 47
60) 9 * 0.15 1.35
61) -7.3 + 0.31 -6.99
62) 0.5 + 528 528.5
63) 16 - 164 -148
64) 31 + 2391 2422
65) 74.6 - 11 63.6
66) 0.46 - 1.21 -0.75
67) 139 - 4 135
68) -0.73 * -8 5.84
69) -0.005 * -53 0.265
70) -3 - -7735 7732
71) 284 + 92.6 376.6
72) 5 * -11 -55
73) 175 + 3262 3437
74) -47 * 0.2 -9.4
75) 7 / -1 -7
76) 0.1 - 1 -0.9
77) 1596 / 2 798
78) -0.3 * 0.8 -0.24
79) 2638 + 620 3258
80) 422 + 23 445


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