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) -4 - 836 -840
2) 4 * 0.004 0.016
3) 47.3 - 0.03 47.27
4) 1.7 + 0.004 1.704
5) 6.5 * 47 305.5
6) 6 - -0.03 6.03
7) -1 - 83 -84
8) 0.037 + 1 1.037
9) 6.14 - 4 2.14
10) 0.01 + 4.8 4.81
11) 711 / 0.9 790
12) 0.065 + 1 1.065
13) -43 * 7 -301
14) 2 - -5 7
15) 907 + 0.3 907.3
16) 88 * 0.12 10.56
17) 0.41 / -0.02 -20.5
18) 0.04 + 0.93 0.97
19) 0.008 - 0.005 0.003
20) -5 * 0.9 -4.5
21) 7.35 - -0.4 7.75
22) 0.4 + 0.75 1.15
23) 0.5 * 0.774 0.387
24) 8 + -89.6 -81.6
25) -5.3 - 0.07 -5.37
26) 43 + 6212 6255
27) 4 * 714 2856
28) 38 + 94 132
29) 7 + 246 253
30) 10 * 0.58 5.8
31) -57 + -21 -78
32) -40 - -199 159
33) 3 - 283 -280
34) 0.61 - 0.006 0.604
35) 599 * 0.008 4.792
36) 69.42 - -1 70.42
37) 0.2 + 0.003 0.203
38) 12 - 2 10
39) -55 * 7 -385
40) -28 - 6 -34
41) 60.19 / 1 60.19
42) 0.62 - -0.003 0.623
43) 0.037 * 4 0.148
44) -7.8 - -9.8 2
45) 6762 + -276 6486
46) 6.72 * 0.8 5.376
47) -4.862 - 0.008 -4.87
48) 0.4 * 3.64 1.456
49) 707 - 1 706
50) 3 / -0.08 -37.5
51) 0.7 - -8 8.7
52) 10 + 0.05 10.05
53) 3 - 0.535 2.465
54) 35 * 0.426 14.91
55) 6 + 29 35
56) 0.02 - -5.39 5.41
57) 12 * 93 1116
58) 4 + 1.6 5.6
59) 19 - -7282 7301
60) 0.082 + 0.492 0.574
61) 1 + 0.34 1.34
62) -73.7 + 673 599.3
63) 0.75 * 0.04 0.03
64) 1785 - 95 1690
65) 111 * -5 -555
66) -0.75 + 9.08 8.33
67) 95 + 24 119
68) -0.003 * -29 0.087
69) 0.9 - -0.2 1.1
70) 0.08 + 95 95.08
71) 8.529 - 4.78 3.749
72) 3.72 + 0.98 4.7
73) 9 + 0.72 9.72
74) 68 - -0.27 68.27
75) -0.005 / 0.005 -1
76) 6 + 929 935
77) -70.5 + 0.1 -70.4
78) 0.09 + -0.003 0.087
79) 0.3 / 0.08 3.75
80) -63.5 + 0.7 -62.8


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