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) -45 + 926 881
2) 5601 - 5 5596
3) 6.4 + 6.78 13.18
4) 759 - 3 756
5) -914 + 398 -516
6) 131 * 0.2 26.2
7) 377 + 98 475
8) -6.2 - -82.34 76.14
9) 66 / -1 -66
10) 8 * 0.4 3.2
11) 0.07 * 0.2 0.014
12) 2 - 50.5 -48.5
13) 7482 + -7856 -374
14) 0.38 * 20 7.6
15) 14 - 84 -70
16) 0.06 + -0.045 0.015
17) -30 + 3 -27
18) -35.5 - 43 -78.5
19) 0.05 * 8.1 0.405
20) -53.05 - -67.19 14.14
21) 880 - 660 220
22) 0.02 * 8 0.16
23) -8 / -4 2
24) 2 - -80 82
25) -9 / 0.09 -100
26) 7188 - 653 6535
27) 4 + -0.02 3.98
28) 279 - 8 271
29) 625 - 3 622
30) 0.043 * 7 0.301
31) 6.7 / 1 6.7
32) 438 + 0.3 438.3
33) 85 * 0.003 0.255
34) 2.18 - -2 4.18
35) -4 + 690 686
36) 5 * 3 15
37) -0.38 - -0.1 -0.28
38) -13 - 8 -21
39) 9710 + -9402 308
40) -4 - -100 96
41) 8 * 642 5136
42) 7.26 - -58 65.26
43) -73 * 0.04 -2.92
44) 8.6 * 8 68.8
45) -1 + 8.033 7.033
46) 0.042 / 0.001 42
47) 261 - 5 256
48) -6 + -8 -14
49) 0.97 * 6 5.82
50) 0.65 + 80 80.65
51) 37 - -3216 3253
52) 2 * 4 8
53) 3.4 + -1.74 1.66
54) -38 - 54 -92
55) -105 / 42 -2.5
56) 69 + -824 -755
57) 3.66 - -2 5.66
58) -80 + -111 -191
59) 903 + -53 850
60) -21 / -0.7 30
61) -193 + 2 -191
62) 38.8 + -0.08 38.72
63) 3 / 0.006 500
64) 78 - -5.7 83.7
65) 1.5 * -0.28 -0.42
66) 262.7 + 86 348.7
67) 0.08 + 59.5 59.58
68) 740 + -17 723
69) 763 - -7 770
70) -0.1 / -0.004 25
71) 0.7 - -2 2.7
72) 80 - 177.6 -97.6
73) -90 + 1 -89
74) 0.666 / 0.045 14.8
75) -53.1 - -956.4 903.3
76) 9 + -93 -84
77) 47 - -531 578
78) 0.33 / 0.11 3
79) -773 - -7 -766
80) -3.91 + -5.3 -9.21


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