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) 0.2 + 0.38 0.58
2) 66 * 0.01 0.66
3) -0.6 + -3.66 -4.26
4) -0.46 * 8 -3.68
5) 29.7 - 0.03 29.67
6) -0.4 + 6.4 6
7) 571 * 2 1142
8) 2 + -94 -92
9) -9 - -5 -4
10) 497 + 929 1426
11) 17 * 7 119
12) 7.69 * 80 615.2
13) -0.06 + 45.75 45.69
14) 16 - 84 -68
15) 5 + -1 4
16) 0.699 + 9 9.699
17) 7 * 0.5 3.5
18) 0.19 + 47.3 47.49
19) -14.5 + 4.9 -9.6
20) 19 * 0.063 1.197
21) 70 + 8 78
22) -21 + -173 -194
23) -0.1 + 85 84.9
24) 9693 / 30 323.1
25) 4100 - -2761 6861
26) 10 * -1 -10
27) 3243 + -11 3232
28) 7.2 / -9 -0.8
29) 0.5 * 6 3
30) -769 * -8 6152
31) 0.7 - 6.8 -6.1
32) 6 * 4.6 27.6
33) 0.009 + 1.9 1.909
34) -5695 + 8397 2702
35) 7.481 - 4 3.481
36) -0.01 + 5.177 5.167
37) 2 - -64 66
38) -0.003 / -1 0.003
39) 0.1 * -751 -75.1
40) -0.356 + 7.4 7.044
41) 589 + 51.8 640.8
42) 5.5 + -1.52 3.98
43) 9.8 + -78.3 -68.5
44) 0.008 / 0.08 0.1
45) 9022 + 87 9109
46) 0.4 * 1591 636.4
47) -460 - 7 -467
48) 753 * 0.004 3.012
49) 109 + -0.2 108.8
50) 8 / 2 4
51) -2 + 69 67
52) -1.7 - -0.43 -1.27
53) 6 + 4 10
54) 64 * -4 -256
55) 9 - -90 99
56) 316 - -30 346
57) 4 - -0.5 4.5
58) 90 * 4.8 432
59) 988 + 258 1246
60) 0.02 + 0.6 0.62
61) 8 + 212 220
62) 70 - 0.7 69.3
63) 33.4 / 4 8.35
64) 50 * 2 100
65) 9 + -6 3
66) -16 / 1 -16
67) 604 + 4028 4632
68) 0.04 + -2 -1.96
69) 0.5 / -0.005 -100
70) 539 + 421 960
71) -437 - 13 -450
72) 2 - 0.04 1.96
73) 3 + 0.951 3.951
74) 0.95 * 75 71.25
75) 5 - 0.73 4.27
76) 7.228 + -0.007 7.221
77) 45.95 - 0.9 45.05
78) 0.05 - -0.315 0.365
79) -96 + 24.5 -71.5
80) 0.007 * 4850 33.95


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