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) 7 * -0.7 -4.9
2) -2009 / -0.7 2870
3) 1 + 3662 3663
4) 0.9 + 49 49.9
5) 6370 - 215 6155
6) 8804 + 1 8805
7) 0.3 + 86.4 86.7
8) 4 + 0.03 4.03
9) 7 - 80.1 -73.1
10) -4 * 52 -208
11) -539 + 8 -531
12) 6 * -9.5 -57
13) 0.57 - 4 -3.43
14) -8.1 + 0.8 -7.3
15) 8 * 0.03 0.24
16) 88 + -6 82
17) -2 + 9950 9948
18) 0.1 * 78.5 7.85
19) 85 + -43 42
20) 8091 + 102 8193
21) 6.9 + -8.3 -1.4
22) -6 - -381 375
23) 6 + -2.405 3.595
24) -95 - 309 -404
25) 81 + -6.37 74.63
26) -1 + -6 -7
27) 78 + 40 118
28) -6568 + 5939 -629
29) 95.3 - 98 -2.7
30) -22 + 0.8 -21.2
31) 94 - -6 100
32) -69 + 2 -67
33) 0.4 + -0.74 -0.34
34) 2423 + 7532 9955
35) -411 * 0.02 -8.22
36) 2 + -8 -6
37) -142 * 3 -426
38) 55 - 0.45 54.55
39) 0.14 * 44 6.16
40) 0.7 - -395 395.7
41) 0.06 + 57.39 57.45
42) 401.5 / -5 -80.3
43) 98 - 79 19
44) 5.9 - -588 593.9
45) 5 + -0.007 4.993
46) 96 / -6 -16
47) 228 - 58 170
48) 2.28 * 2.3 5.244
49) 3 + 490 493
50) 49 * 0.006 0.294
51) 607.4 - 3 604.4
52) 0.04 - 0.005 0.035
53) -3657 * -0.1 365.7
54) 57 + -493 -436
55) 0.6 * 4 2.4
56) 0.8 + -0.005 0.795
57) -7 + -6 -13
58) 3 + 0.04 3.04
59) 325 - 9 316
60) -2 / 8 -0.25
61) 0.002 * 6 0.012
62) 703 - 57.3 645.7
63) -9 * 4 -36
64) 147 + 29 176
65) -0.534 - -4.44 3.906
66) 12 / 6 2
67) 494 + 4918 5412
68) 1.4 + -6.7 -5.3
69) 943 - 607 336
70) -2 - -8.6 6.6
71) 6.2 - 87 -80.8
72) 39 + 3.56 42.56
73) 148 / 0.37 400
74) -2.2 - 7 -9.2
75) -124 + 1 -123
76) 0.01 + 0.748 0.758
77) -0.8 - -5 4.2
78) 508 - -92 600
79) 0.18 * -6 -1.08
80) 49 - 58.7 -9.7


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