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) 25 + 0.76 25.76
2) 90 / 1 90
3) 35.4 * 3 106.2
4) 129 - 47.22 81.78
5) -0.79 + 88 87.21
6) 0.01 - -46 46.01
7) 0.05 * 0.5 0.025
8) 892.6 - -53 945.6
9) 7 - 80 -73
10) 18 - -8 26
11) 76.8 - -563 639.8
12) 0.6 - 1 -0.4
13) -4.1 + 64 59.9
14) -12 + 60 48
15) 0.83 - -39 39.83
16) -29 + 84.73 55.73
17) 0.04 * 815 32.6
18) -6 - 2 -8
19) -62.8 + 85 22.2
20) 903 / -7 -129
21) 0.02 * 105 2.1
22) 11.3 - -0.07 11.37
23) -0.87 * -8.8 7.656
24) 76.43 - 0.14 76.29
25) -18 - 3.4 -21.4
26) 8 * 3.19 25.52
27) 0.9 - 0.95 -0.05
28) 1.168 * 3 3.504
29) 0.1 - 61 -60.9
30) 6 * 346 2076
31) 5.3 + 4.258 9.558
32) 1 * 0.008 0.008
33) 25 - -48.4 73.4
34) 23 - 80 -57
35) -6 * -788 4728
36) 0.07 - 1 -0.93
37) 0.568 * 8 4.544
38) -4 - -52 48
39) 83 + 5 88
40) -0.7 - -0.16 -0.54
41) 1.6 * 3 4.8
42) -5 + 872.8 867.8
43) 0.29 - 0.73 -0.44
44) 615 - -72 687
45) 935 / 25 37.4
46) -6 + 2.57 -3.43
47) 4.9 - 51 -46.1
48) 0.003 * 5 0.015
49) -4 + -5.2 -9.2
50) -149 * 0.02 -2.98
51) 0.4 * 2259 903.6
52) 58 + 9630 9688
53) 2 - -4 6
54) 34.8 / 0.75 46.4
55) -22 + -0.5 -22.5
56) 6 * 38 228
57) -9.4 + 97.2 87.8
58) 0.4 * -217 -86.8
59) 0.55 + -5.64 -5.09
60) 73.7 + 4 77.7
61) 5.8 * 50 290
62) 2.53 - 1 1.53
63) -270 * 0.9 -243
64) -0.44 - 4 -4.44
65) -696 * -1 696
66) 3 + -106 -103
67) -7 - -6262 6255
68) 0.5 + 7.434 7.934
69) 58.85 - -0.47 59.32
70) 35.24 - -9 44.24
71) 8395 + -977 7418
72) -8 + -3 -11
73) 8.1 - 89.1 -81
74) 49 + -43 6
75) -41.8 - 5.7 -47.5
76) 0.008 / 8 0.001
77) 12.5 + -9.3 3.2
78) 82 * -7 -574
79) 1.59 - 0.26 1.33
80) 45 / 0.3 150


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