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) 6 - 7.9 -1.9
2) 18 + -17 1
3) 477 + 388 865
4) 8 + 71 79
5) -8 - 0.6 -8.6
6) 0.006 + -0.002 0.004
7) -16 - -3497 3481
8) 94 + 78 172
9) 2449 + 434 2883
10) 0.5 * 661 330.5
11) 57.33 + 8 65.33
12) 5 - -7 12
13) -73 + 7.6 -65.4
14) -86 - 64 -150
15) -46 + 58 12
16) 4159 - -6 4165
17) 64 - 7 57
18) 9 + 0.09 9.09
19) -7.1 - 9 -16.1
20) 9 - 98 -89
21) 0.76 + 92.03 92.79
22) 1 * 921 921
23) 5441 + 810 6251
24) 4.08 - 7 -2.92
25) 3.7 + -70.3 -66.6
26) -0.4 * -2.095 0.838
27) -404 + 2 -402
28) 0.7 * 7 4.9
29) 7 - 3.855 3.145
30) 340 - 2.4 337.6
31) -0.096 - -3 2.904
32) 708 + 70 778
33) -0.07 - 0.11 -0.18
34) -72.2 - 0.3 -72.5
35) 54.7 - 0.59 54.11
36) 0.063 + 7 7.063
37) 1 + -2.1 -1.1
38) 307 * 2 614
39) 2.05 + 0.42 2.47
40) -272 - -7 -265
41) 0.305 * 0.4 0.122
42) -208.7 - -421 212.3
43) -0.08 + 0.71 0.63
44) 65.32 - 4.26 61.06
45) 1 + -471 -470
46) 612 + 21 633
47) -77 - 63 -140
48) -0.9 * 47 -42.3
49) 3.278 + 0.5 3.778
50) 22 - 5 17
51) -9 + 0.47 -8.53
52) 107.3 + -77 30.3
53) 0.214 + 8.9 9.114
54) -556 + 815 259
55) 854 + 79 933
56) -487 + -54 -541
57) 3 * -17 -51
58) -6 * -2 12
59) -70 / 8 -8.75
60) 0.42 * 35 14.7
61) 96 / -8 -12
62) 5 + 98.7 103.7
63) 0.25 + 0.087 0.337
64) -62 - -0.8 -61.2
65) 71 + -0.7 70.3
66) -0.1 - 8 -8.1
67) 6926 + 937 7863
68) 76 - 0.01 75.99
69) 7.1 + 0.092 7.192
70) 995 - 7 988
71) -0.6 + 99 98.4
72) 0.17 * 30 5.1
73) 0.5 + -33 -32.5
74) 91 - -0.51 91.51
75) 66 + 5.48 71.48
76) 0.007 + 8 8.007
77) 6.924 + 1 7.924
78) -118 + -3 -121
79) 0.04 / 10 0.004
80) -6 + 89 83


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