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) 7225 - 4 7221
2) 0.08 - -27.36 27.44
3) 11 - 0.4 10.6
4) 8027 + 81 8108
5) 52 + 3.1 55.1
6) -1 / 5 -0.2
7) 5 * 718.4 3592
8) 1.41 + -0.861 0.549
9) 0.08 + 72.15 72.23
10) -48 / -1 48
11) 141 - -78.7 219.7
12) 63 + -64 -1
13) 0.1 * 48 4.8
14) 2 - 44.2 -42.2
15) 30.51 / 1 30.51
16) 124 + 52 176
17) 7 * 11 77
18) 393 - 239.4 153.6
19) 534.6 + 449 983.6
20) 4566 / 761 6
21) 237 * 0.01 2.37
22) 2 + -724 -722
23) 3 + -9 -6
24) 8 + -96 -88
25) 3 * 352 1056
26) 86 - 0.4 85.6
27) 94 - -4 98
28) 7 - 0.56 6.44
29) 477 + 7333 7810
30) 1 + -3 -2
31) 8 * -21 -168
32) 1075 * 6.8 7310
33) -0.09 - 0.05 -0.14
34) -9 * -8 72
35) 5679 + 57 5736
36) -0.99 - 8.79 -9.78
37) -9 - 77.4 -86.4
38) -217 / 7 -31
39) 68 - 9.9 58.1
40) 0.23 + -3 -2.77
41) 1 * 4.11 4.11
42) 0.004 + 3 3.004
43) 8 - 0.03 7.97
44) -5 - 787 -792
45) 78.7 - -80 158.7
46) 31.7 + 9 40.7
47) 7.4 - 0.2 7.2
48) 12.7 + 0.2 12.9
49) 516 - -850 1366
50) -5 + 6769 6764
51) -75.5 + 8 -67.5
52) -60 + -49 -109
53) 8.918 + -0.02 8.898
54) 4.3 - 3.427 0.873
55) 223 + 4.1 227.1
56) 9683 - 3 9680
57) 147 + -4 143
58) 39.7 - -0.8 40.5
59) 3868 - 15 3853
60) -60 + 281.2 221.2
61) 86.3 + -0.03 86.27
62) 1.4 + -0.79 0.61
63) -20 + 0.3 -19.7
64) 8139 + -2 8137
65) 0.09 - -5 5.09
66) 0.013 + 7 7.013
67) 0.002 + 1 1.002
68) 0.8 + 39 39.8
69) 8 + -1.13 6.87
70) -63 + 7338 7275
71) 549 - -8 557
72) 551 - -6 557
73) 7 + 889.8 896.8
74) -68 + -612 -680
75) 7548 - 3 7545
76) 1 + 402 403
77) 0.09 * 402 36.18
78) -8 + -0.38 -8.38
79) 46.4 - 0.08 46.32
80) -2.8 + 8 5.2


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