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) 0.004 + 4 4.004
2) -72 + 18 -54
3) 909 - 65 844
4) -4901 - -8677 3776
5) 30 - 4.42 25.58
6) -0.6 / 4 -0.15
7) 2.4 - -5.925 8.325
8) -0.018 * -6 0.108
9) 568 - -3233 3801
10) 30 * 73 2190
11) -90 - 6 -96
12) -92 - 32 -124
13) 82 + 32.4 114.4
14) 162 - 9 153
15) 4 + 17 21
16) 0.808 + 0.29 1.098
17) 8.5 + 8.07 16.57
18) 8.33 * 0.5 4.165
19) 0.01 - -2.107 2.117
20) 6.3 / 900 0.007
21) -8 + -0.1 -8.1
22) -9.1 * 0.1 -0.91
23) -12 + -55 -67
24) 1.06 - 0.03 1.03
25) 0.2 + 26 26.2
26) -0.8 + 0.3 -0.5
27) 7.9 - 0.005 7.895
28) 7.5 * 6 45
29) 93 + 0.05 93.05
30) 82 * -0.3 -24.6
31) -2.8 - 5 -7.8
32) 66 / 8 8.25
33) 6 - -0.6 6.6
34) 44 - 0.04 43.96
35) 8 + -6.115 1.885
36) 73 / 0.4 182.5
37) 4648 - 3562 1086
38) 932 + 49 981
39) 0.657 * 9 5.913
40) 470 + -481 -11
41) 8 / -16 -0.5
42) -0.57 + 6 5.43
43) 4 * 1 4
44) 45.6 + 35 80.6
45) -39 - 33 -72
46) -484 - 110 -594
47) 47 + -915 -868
48) 8 - -0.4 8.4
49) 3.01 + 0.41 3.42
50) -9.8 * 7 -68.6
51) 2 + -27.4 -25.4
52) 4 * 0.9 3.6
53) 5 - -8226 8231
54) 1.38 + 1 2.38
55) 8520 + -1440 7080
56) -94 + 714.2 620.2
57) -0.1 * -0.06 0.006
58) 9 - 457 -448
59) -70 + 79 9
60) 0.4 * 6 2.4
61) 1 * 93 93
62) 6 + -607 -601
63) -30 - 549 -579
64) -6 + 20 14
65) 1.26 - -0.3 1.56
66) 0.543 + 0.008 0.551
67) 0.04 - 0.09 -0.05
68) -404 + 1 -403
69) 59 - -0.9 59.9
70) -30 / 2 -15
71) -9 - -0.5 -8.5
72) 99 * -0.3 -29.7
73) 0.08 - 9.1 -9.02
74) 8.52 + -2.7 5.82
75) 0.042 * 8 0.336
76) 25 + 36 61
77) 0.006 / 0.075 0.08
78) 640 * 8.95 5728
79) 1 - -5.889 6.889
80) -8.3 + 0.06 -8.24


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