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) -0.008 * 915 -7.32
2) 0.05 + 6.8 6.85
3) 7869 - 538 7331
4) 6 * 0.8 4.8
5) 9.58 - 3.2 6.38
6) -85 * -3 255
7) 0.3 + 4 4.3
8) 0.7 * 3.4 2.38
9) 0.06 * 86 5.16
10) 0.632 + 0.001 0.633
11) 104 - 8 96
12) 2.9 + 6 8.9
13) 81 * 2 162
14) -187 - 5 -192
15) 2.7 * 1.9 5.13
16) 21 + -3.73 17.27
17) -8009 + 9177 1168
18) -8 - -177 169
19) 200 + 6955 7155
20) 59 - 377 -318
21) 34 + 7 41
22) 88 + -19 69
23) 8.1 - 9 -0.9
24) 2 + -0.5 1.5
25) -9.3 + 603.4 594.1
26) -3.01 / 1 -3.01
27) 14 + -17 -3
28) 0.612 - -1 1.612
29) 81 * 4.6 372.6
30) -305 + 5 -300
31) 3.1 - -0.563 3.663
32) 39.63 + -4.8 34.83
33) -3.59 + 1.71 -1.88
34) 0.9 + 0.064 0.964
35) 6981 - -1 6982
36) 0.06 + -9 -8.94
37) 37 - 78.4 -41.4
38) 0.004 + 2.9 2.904
39) 6 - 1.431 4.569
40) 7.7 + 75 82.7
41) 6 / -6 -1
42) -3 * -3.5 10.5
43) 1814 - -27 1841
44) -34 + -0.6 -34.6
45) 70 - 0.09 69.91
46) 9 - 2.4 6.6
47) 64 + 9.78 73.78
48) 552 - -789 1341
49) 619 + 40 659
50) 7 * -43 -301
51) -57 + 34 -23
52) 1.4 - -648 649.4
53) -7.3 - -8.5 1.2
54) 2 + 0.1 2.1
55) 1294 + 4 1298
56) -6 - -9 3
57) 0.2 * 0.9 0.18
58) 832 - 1185 -353
59) 57 + 0.06 57.06
60) 0.03 - 7 -6.97
61) 6.2 + -3.273 2.927
62) 25 * 2.4 60
63) 3 + 55 58
64) -33 * -0.01 0.33
65) 8.7 + -2 6.7
66) -0.04 + -4 -4.04
67) 0.02 * 6 0.12
68) -1 * 6.9 -6.9
69) 11 - 930 -919
70) 0.07 * 4 0.28
71) 9 * 14 126
72) -28 + 2 -26
73) 943 + -2.4 940.6
74) 40 * 5.3 212
75) 99.55 - 0.01 99.54
76) 650 - -73 723
77) -75 + 5 -70
78) 19 * -3.4 -64.6
79) -0.043 + 0.29 0.247
80) 9187 + 72 9259


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