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) 0.3 + -4 -3.7
2) -0.08 / 0.8 -0.1
3) -0.2 * -82 16.4
4) -3 + 9 6
5) -74.8 + 50 -24.8
6) 5256 * 1 5256
7) 42.5 + 3.1 45.6
8) 11.5 - -9.98 21.48
9) 0.029 + 0.053 0.082
10) -9.5 - -9 -0.5
11) 8 - -41.5 49.5
12) 0.06 / -0.5 -0.12
13) 0.5 * 0.63 0.315
14) 0.5 + 7.13 7.63
15) -0.42 * 10 -4.2
16) 70 + -42.1 27.9
17) 3285 - -218 3503
18) -14 + 5 -9
19) 0.05 * -84 -4.2
20) -3.1 + 2.41 -0.69
21) 1065 - -7 1072
22) 69 * 0.062 4.278
23) 0.004 / 0.5 0.008
24) -926 / -0.5 1852
25) 200 - 53 147
26) 9 + 5.6 14.6
27) -88 - 7 -95
28) 2.79 + 25.7 28.49
29) 44 - 4 40
30) 900 - 722 178
31) 1.65 + -8 -6.35
32) 8626 + 8 8634
33) 489 - 258.1 230.9
34) 0.8 + 1.032 1.832
35) 670 - 6 664
36) 459 + -434 25
37) 5 + 0.005 5.005
38) 7.09 + 0.37 7.46
39) -91 * 3 -273
40) 0.02 - -3.3 3.32
41) -7 + 6479 6472
42) 0.8 - 0.031 0.769
43) 946 / 10 94.6
44) 49 + -969 -920
45) 86 + -3 83
46) 0.12 - 3.4 -3.28
47) 1 / 8 0.125
48) 18 * 77 1386
49) 667 / 2 333.5
50) 32.25 - -7 39.25
51) 0.1 - -3.5 3.6
52) -2.5 * 366 -915
53) -0.08 / -0.01 8
54) 7.733 + 0.003 7.736
55) 0.855 - 0.008 0.847
56) 474.2 + 69 543.2
57) 34 * 36 1224
58) 0.07 + 8.11 8.18
59) 6 - 7.3 -1.3
60) 0.08 * -70 -5.6
61) 2 + 631 633
62) -608 / -4 152
63) 26 + 86 112
64) -4.1 / 0.005 -820
65) 5 - 745 -740
66) 9274 - 524 8750
67) 0.04 + 0.59 0.63
68) 8.5 + -0.04 8.46
69) 4 * 26 104
70) 0.008 + 6 6.008
71) -0.4 * 0.8 -0.32
72) 7 - -0.95 7.95
73) 870 + 857 1727
74) -0.01 * -17 0.17
75) -8.84 * -9 79.56
76) 953 - 3 950
77) 8 * 15.95 127.6
78) 2 + -0.94 1.06
79) 9.9 - 22 -12.1
80) 51 * 1 51


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