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) -68 - -5 -63
2) -4 + 6.4 2.4
3) 981 * 0.7 686.7
4) 29 + 0.4 29.4
5) 0.3 + -8.64 -8.34
6) 7556 - 309 7247
7) 7313 + 377 7690
8) 611 * 0.9 549.9
9) 5.46 - -2 7.46
10) 103 + 0.6 103.6
11) -29.7 - 8 -37.7
12) 7 * 724 5068
13) 98 - 0.4 97.6
14) -4 - -24.1 20.1
15) -5.3 + -0.6 -5.9
16) -25 + 682 657
17) 9 * 683 6147
18) 0.07 - 79.67 -79.6
19) 3.256 + 6 9.256
20) 3 - -17 20
21) 0.09 - -22.6 22.69
22) 395 - 31.7 363.3
23) 0.6 * 14 8.4
24) -7.15 * 4 -28.6
25) -15 * 6.8 -102
26) 6619 + -9 6610
27) -3 - 5 -8
28) -3 - 828 -831
29) 29.8 - -7 36.8
30) 22.9 - 5 17.9
31) 830 - 9 821
32) 2 * -7 -14
33) -285 * 1 -285
34) 536 + 93.5 629.5
35) 0.2 + 5 5.2
36) -26 - 529 -555
37) -0.408 * -20 8.16
38) 2 + 0.054 2.054
39) -23 / -0.1 230
40) 0.5 - -0.055 0.555
41) 0.02 - 9 -8.98
42) 21 / 6 3.5
43) -71 + -76 -147
44) -67 * 0.09 -6.03
45) 892 + -5.8 886.2
46) 0.08 - -4.251 4.331
47) 1 * 4.555 4.555
48) 2 * 5 10
49) -5 + 97 92
50) 2 + 32 34
51) -51 - 59 -110
52) 48 + 0.45 48.45
53) 531 - 4 527
54) 59 * 29 1711
55) -866 + -63 -929
56) 67.9 + 736 803.9
57) -0.5 - 1 -1.5
58) 5 + 0.836 5.836
59) 0.09 - -0.125 0.215
60) -22 + 125.2 103.2
61) -0.9 * 5 -4.5
62) 0.04 - 10 -9.96
63) 6.7 / 0.02 335
64) 37 + 1071 1108
65) 4.8 / 0.06 80
66) 0.106 + 0.033 0.139
67) 3.49 - 0.004 3.486
68) 5 + 40.35 45.35
69) 3 * 244 732
70) -89 + 445 356
71) 4.54 + 4.518 9.058
72) 6790 + -1 6789
73) -863 - -8 -855
74) -2 + 3 1
75) 32 * 0.33 10.56
76) 0.9 + 0.079 0.979
77) 66 + 5 71
78) 0.4 * 3.2 1.28
79) -4 * -7.99 31.96
80) 9879 - 8 9871


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