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 48
2) 3 + 217 220
3) -820 + 311 -509
4) 0.064 - -8.5 8.564
5) 326 + -3 323
6) 7.4 * -7 -51.8
7) 0.023 + 2 2.023
8) 4.77 - 7 -2.23
9) 25 + -9 16
10) 6 + 7 13
11) 4 - -0.19 4.19
12) 39 + -2.4 36.6
13) -2 + 5 3
14) -8 + 997 989
15) 5 - -82.8 87.8
16) 50 * 0.47 23.5
17) 0.749 + 7 7.749
18) 0.74 / 0.002 370
19) -9 - 0.02 -9.02
20) 26 + 5529 5555
21) -9 * 6 -54
22) 0.022 + 8.12 8.142
23) 0.008 - 0.005 0.003
24) -0.32 + 8 7.68
25) 60 * -0.066 -3.96
26) 52 - 0.05 51.95
27) 3 - 163 -160
28) 37.1 - -291 328.1
29) 0.015 - -9 9.015
30) 2 - 0.66 1.34
31) -85 + 9 -76
32) 5 * 0.005 0.025
33) 0.7 - 6 -5.3
34) 0.16 + -1 -0.84
35) -0.733 - -0.742 0.009
36) -5.28 - 0.84 -6.12
37) 37.8 + 0.95 38.75
38) 0.032 * 15 0.48
39) -5 - -24.59 19.59
40) -56 / -7 8
41) 616 * 0.025 15.4
42) 94.82 + 0.05 94.87
43) 1.39 + -2 -0.61
44) 0.007 + 0.7 0.707
45) 3 - -0.02 3.02
46) 729 + -24.4 704.6
47) 1 * 3.98 3.98
48) 1.7 * 93 158.1
49) 3 * 29 87
50) 0.01 * 445 4.45
51) -36 + -572 -608
52) 7 + -3.184 3.816
53) 883 - 7 876
54) -349 + 4 -345
55) 5 / 0.001 5000
56) 1 * 0.29 0.29
57) 87 * 0.8 69.6
58) 10.29 - 0.8 9.49
59) 0.001 + 7 7.001
60) 26.1 * 8 208.8
61) -0.01 + 9.5 9.49
62) 1.9 - -0.001 1.901
63) 0.8 * -6 -4.8
64) 5445 + -5307 138
65) 309.6 / -48 -6.45
66) 2700 - 2 2698
67) -0.8 + -0.05 -0.85
68) 302 / 8 37.75
69) 108 * 5 540
70) 0.37 - 1 -0.63
71) 0.9 + -75 -74.1
72) -957 - 12 -969
73) -0.008 * 5 -0.04
74) 678.3 + -2.3 676
75) 8.066 - 0.051 8.015
76) 0.003 + 4 4.003
77) 57 + 0.06 57.06
78) 35 + 8 43
79) -687 + 515 -172
80) 12 + -30 -18


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