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) 231 - 624 -393
2) -2.6 + 0.9 -1.7
3) 21 + 96 117
4) 39 - 39.5 -0.5
5) -596 + -7 -603
6) 0.92 * 0.275 0.253
7) 8 + 5 13
8) 884 - 18.8 865.2
9) -0.4 - 0.03 -0.43
10) -5 * -64 320
11) 6.735 - 0.877 5.858
12) 1 * 698.1 698.1
13) 1.55 + 0.98 2.53
14) -0.07 + 9.221 9.151
15) 977 - 1.2 975.8
16) -4.1 * 7 -28.7
17) 6 - -434 440
18) 6 - 0.9 5.1
19) 96.6 - -880 976.6
20) 0.29 + -0.047 0.243
21) 751.4 + 0.6 752
22) 9306 + -17 9289
23) 0.72 - -0.9 1.62
24) 6168 + -4335 1833
25) -3 + 9512 9509
26) -5.8 - 7 -12.8
27) 0.3 + 0.098 0.398
28) -77 + 755 678
29) 0.007 * 3 0.021
30) 9 + -7.6 1.4
31) 1 + -1 0
32) 9612 + 37 9649
33) -39 * 5 -195
34) 99 - -3 102
35) 4703 + -4 4699
36) 994 / 0.2 4970
37) -0.008 + 0.7 0.692
38) 55.6 * -5 -278
39) -6.96 - 0.8 -7.76
40) -0.007 + 0.9 0.893
41) 1 / 0.1 10
42) 0.01 * 0.1 0.001
43) 33.1 - 75 -41.9
44) 8 - 42 -34
45) 4.1 + 3 7.1
46) -6 - -4639 4633
47) 23.9 + 20 43.9
48) 49 - 0.3 48.7
49) 0.26 + 1 1.26
50) 1 * 4 4
51) 6.1 * 83 506.3
52) 76 - -87 163
53) -239 + 8 -231
54) 0.025 * 916 22.9
55) 0.2 * 0.05 0.01
56) 7 + -1 6
57) 5 - 514 -509
58) 74 * 2 148
59) 92 - -8 100
60) 1 - 0.002 0.998
61) 77 - 0.01 76.99
62) -0.05 * 93 -4.65
63) -30.7 + -8 -38.7
64) -114.9 * -1 114.9
65) -4 * 2.5 -10
66) 0.62 + 6 6.62
67) 47 - -7 54
68) 5 + 0.02 5.02
69) 2 - 439 -437
70) 0.007 * 5 0.035
71) 31.2 - 12 19.2
72) -1226 + 836 -390
73) 1 / 0.8 1.25
74) -43 * 0.8 -34.4
75) -0.01 - 1.8 -1.81
76) 6.33 + 3 9.33
77) 0.291 - 0.007 0.284
78) 196 + 4 200
79) 3 * -0.86 -2.58
80) 0.003 * 2 0.006


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