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) -8 - -6 -2
2) 9786 - 76 9710
3) 0.02 * 2 0.04
4) 1 + 90.6 91.6
5) 183 + 91 274
6) 5.1 - -907 912.1
7) 0.07 * 59 4.13
8) 863 + 8 871
9) -453 + 8 -445
10) 0.6 * -90 -54
11) 2.3 + 504.3 506.6
12) 0.3 + 5 5.3
13) -1.9 + 693 691.1
14) -0.2 * 15.9 -3.18
15) -9.88 + 78.81 68.93
16) 4 - 3 1
17) 9 + -13.1 -4.1
18) 9 * 0.164 1.476
19) 4 - 642 -638
20) -9.4 - 47 -56.4
21) 835 - 0.3 834.7
22) 924 + 973 1897
23) 0.3 - 0.58 -0.28
24) -6.896 - -7.6 0.704
25) 9 * 901 8109
26) -7 / 5 -1.4
27) 0.75 * -0.2 -0.15
28) 5 - 0.953 4.047
29) -0.9 - -654 653.1
30) 35.6 + 82 117.6
31) 69 + -1 68
32) 54 - 95 -41
33) -8 - -1 -7
34) -405 + 32 -373
35) 883.5 - -9 892.5
36) 0.6 * 1.93 1.158
37) 9701 - 21 9680
38) 2 * 18.54 37.08
39) 2.268 / 6 0.378
40) -17 * -42.6 724.2
41) 9158 - 16 9142
42) 9 + 74.6 83.6
43) 21.1 * 0.02 0.422
44) 5.1 + 0.417 5.517
45) 7 * 26 182
46) -2 * 78 -156
47) 261 - 5 256
48) 72 * 6 432
49) 9 - 79 -70
50) 49 / 0.14 350
51) 5.7 * 68 387.6
52) 0.84 + -0.008 0.832
53) 667 - -3.2 670.2
54) 10 + 3 13
55) 97 - -0.94 97.94
56) 368.3 + 5.7 374
57) 624 - 6.1 617.9
58) 83.03 - 5 78.03
59) 8.78 + 3.8 12.58
60) 5.88 - 3 2.88
61) 5 - 154 -149
62) -0.5 + 85 84.5
63) -0.1 / 0.005 -20
64) 821 + 64 885
65) -0.9 * -4 3.6
66) 49 - 0.3 48.7
67) 0.19 + -9 -8.81
68) 0.88 + 91 91.88
69) 8 * -90 -720
70) 63 + -0.92 62.08
71) 7 - 0.2 6.8
72) 40 - -40 80
73) 0.7 + 0.022 0.722
74) -643 * -9 5787
75) 6.91 - -5 11.91
76) 0.04 + -0.006 0.034
77) 0.02 - -1 1.02
78) -3.2 - 7 -10.2
79) 6 + 0.05 6.05
80) -351 / 5 -70.2


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