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) -5357 + 6981 1624
2) 0.02 + 0.004 0.024
3) 62.55 - -36.1 98.65
4) 0.4 + -97 -96.6
5) 9 - -0.791 9.791
6) 2617 - -5 2622
7) 1.84 - -0.9 2.74
8) 3569 - -6023 9592
9) 23.9 - 3 20.9
10) -0.02 + 0.01 -0.01
11) 3.2 / 40 0.08
12) 97.54 + 2.26 99.8
13) 0.06 * 618 37.08
14) 0.075 + 7 7.075
15) -43 - 840 -883
16) 0.068 - 0.006 0.062
17) 2.2 + 9.66 11.86
18) -9 - -4636 4627
19) 32 - -74 106
20) 7316 + 48 7364
21) 6 - -4.65 10.65
22) -9 + -63 -72
23) 5.451 + 0.77 6.221
24) 7 * 366 2562
25) 66 - 32 34
26) 30 / -0.25 -120
27) 4 - 4.77 -0.77
28) 671 + -575 96
29) 47 + 299.8 346.8
30) 75 - -3343 3418
31) 1 * 7 7
32) 0.092 - 0.006 0.086
33) 535 * 0.003 1.605
34) 99 + 53 152
35) 0.08 + 0.2 0.28
36) 0.97 - -25.39 26.36
37) 37 / 2 18.5
38) 466 + 319 785
39) 0.88 / -0.005 -176
40) 9.4 - -8.38 17.78
41) 4 * -0.54 -2.16
42) -2.906 + 3 0.094
43) 2 + 58 60
44) 0.4 + 677.3 677.7
45) 0.37 - -82 82.37
46) 1 / 0.8 1.25
47) -41 * 6 -246
48) -0.015 - -0.5 0.485
49) 4 / 0.05 80
50) -454 * 0.05 -22.7
51) -86 - -361.2 275.2
52) -38 * -7.5 285
53) -72 / -2 36
54) -0.08 * 99 -7.92
55) 5.8 - 1.408 4.392
56) -41 + 160 119
57) 6.133 + 0.062 6.195
58) 957.3 - 7 950.3
59) 5 * -8.88 -44.4
60) 8.02 + 8.7 16.72
61) 41 * -3 -123
62) -7 / 0.4 -17.5
63) 915 + -41 874
64) -0.4 * -3 1.2
65) 50.6 - 3.01 47.59
66) -6 / -2 3
67) 9 - 10.77 -1.77
68) 0.003 + 0.04 0.043
69) 9659 - 570 9089
70) 847 * 6 5082
71) 1.93 * -2 -3.86
72) 685 + -5 680
73) 7.35 + -0.001 7.349
74) 24.54 - 0.1 24.44
75) 0.18 * 2825 508.5
76) 59.24 + 0.87 60.11
77) 647 * 6 3882
78) 1.66 - -0.01 1.67
79) 9 / 6 1.5
80) -49 + 4758 4709


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