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) 0.19 - -27 27.19
2) 0.627 - -0.365 0.992
3) 12 + -9.15 2.85
4) -0.68 - -12 11.32
5) 7.5 + 34.54 42.04
6) 83.18 - 0.5 82.68
7) 7 * 0.01 0.07
8) 0.92 - 4.3 -3.38
9) 7.03 + 0.009 7.039
10) 0.17 - 5 -4.83
11) 64 - -2 66
12) 3 - -3.95 6.95
13) -0.8 - -14 13.2
14) 76 + 60 136
15) -1 * -0.4 0.4
16) -0.5 + -60 -60.5
17) 7 * -1 -7
18) 0.009 / 0.005 1.8
19) 40 - 392 -352
20) 0.02 - -8 8.02
21) 81 * -7 -567
22) 1729 + 3 1732
23) 0.054 / 0.9 0.06
24) -2.1 + 6 3.9
25) 6 * -4 -24
26) -8 - 321 -329
27) 0.7 * 0.85 0.595
28) 23 - 86 -63
29) 5.73 - -0.78 6.51
30) 281 + 61 342
31) 95 + 72 167
32) 57 / -57 -1
33) -7 * 9 -63
34) 81.5 - 18.1 63.4
35) -793 + 94 -699
36) 6 - -691.6 697.6
37) -1 - -509 508
38) 6 + -0.05 5.95
39) 16 * 0.18 2.88
40) 0.887 - 0.51 0.377
41) 1937 + 52 1989
42) 0.02 - 1 -0.98
43) -0.335 * -6 2.01
44) 9.46 - 3.171 6.289
45) 6 / 4 1.5
46) 6588 - -92 6680
47) 5 - 9.6 -4.6
48) 0.49 / 0.05 9.8
49) 7 - 0.3 6.7
50) 0.7 / -0.01 -70
51) -0.299 + 9 8.701
52) -7 / 1 -7
53) 0.6 + 9 9.6
54) 3.828 + 4.5 8.328
55) -284 - 5 -289
56) 32 - 418 -386
57) 630 + 2.4 632.4
58) 34 - 493 -459
59) 0.6 + -3.02 -2.42
60) 0.004 / 0.04 0.1
61) -48 + -9 -57
62) -0.251 * -2 0.502
63) 588 - 0.9 587.1
64) -57.9 + 92 34.1
65) 3.99 + 8 11.99
66) -27.8 * -0.01 0.278
67) 5.56 - 2 3.56
68) -4 - 769 -773
69) 6.648 - 2 4.648
70) -32 + 7542 7510
71) 9 + 828 837
72) 4.041 - 1.9 2.141
73) 972 + 36 1008
74) 51 + -5.7 45.3
75) 0.075 / 1 0.075
76) 0.8 + -0.08 0.72
77) 2 + 0.4 2.4
78) 0.365 - 0.08 0.285
79) 93.3 + -22 71.3
80) 6 + -1.566 4.434


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