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) 0.773 - 0.013 0.76
2) -666 - -31 -635
3) 900 / 8 112.5
4) 51 + 6.98 57.98
5) 299 + 75 374
6) 0.19 - -48 48.19
7) -0.85 - 0.97 -1.82
8) -0.07 + -8.02 -8.09
9) 720 / 3 240
10) -4 * 3 -12
11) 2.28 / 5 0.456
12) 0.376 + 0.046 0.422
13) 0.1 * 9 0.9
14) 0.018 + -7.928 -7.91
15) 49 + -21.8 27.2
16) 0.85 * -74 -62.9
17) -4 * -9 36
18) 188 + 13.6 201.6
19) 1.06 - 3 -1.94
20) 38 + 526 564
21) -49 - 49 -98
22) 0.06 + 31.23 31.29
23) 0.088 + 0.032 0.12
24) -747 - 7 -754
25) 0.36 * 4 1.44
26) -570 - 87 -657
27) 2 + 6 8
28) -37 / 1 -37
29) 1 * 3293 3293
30) 8133 - -1 8134
31) 7 * 102 714
32) 6 * 0.03 0.18
33) 0.3 * 47 14.1
34) 0.87 + 93 93.87
35) 8 * 0.8 6.4
36) 0.2 - -6 6.2
37) 0.01 + 0.08 0.09
38) 6 * 0.088 0.528
39) 2 + -4 -2
40) -3 - 4.41 -7.41
41) 880 + 58 938
42) 64 / 1 64
43) 33 - -361.7 394.7
44) 1.1 + -0.008 1.092
45) 52 * 9 468
46) 3.12 - 0.295 2.825
47) 0.2 + -67.5 -67.3
48) -849 - -7585 6736
49) 9 + -0.5 8.5
50) 5169 + 36 5205
51) 25.52 + 34 59.52
52) 88.88 - 58.9 29.98
53) 0.7 + 237 237.7
54) 209 + 3 212
55) 0.98 - 5 -4.02
56) -7 + 7.547 0.547
57) 7.3 - -7 14.3
58) -22.5 - 264.5 -287
59) 0.75 * 3 2.25
60) -0.068 + 9 8.932
61) 5557 + 57 5614
62) 1.2 * 0.4 0.48
63) 46 + 418 464
64) -8.2 + -0.03 -8.23
65) -141 * -0.04 5.64
66) 72 - 5 67
67) 86.88 + 6 92.88
68) 0.878 - 0.098 0.78
69) -1.43 + 0.9 -0.53
70) 491 - 0.3 490.7
71) 67 + 5 72
72) 8509 - -6 8515
73) 298 + -32 266
74) 219 - 9.8 209.2
75) 3 + 8 11
76) -1.15 + 9.701 8.551
77) 4.96 * 7 34.72
78) -4 + 5.6 1.6
79) 0.4 - 0.07 0.33
80) -68 * -1 68


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