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) 61 + 0.4 61.4
2) 767.8 - -54 821.8
3) 30 + 0.02 30.02
4) 0.951 - -4.299 5.25
5) -5 + 27.35 22.35
6) 8202 + -7132 1070
7) 2 - -2 4
8) 25 + -34 -9
9) 29 - 480 -451
10) 837 - -1406 2243
11) 3 * 0.3 0.9
12) -29.4 - 24 -53.4
13) 949 * -1 -949
14) 0.03 + 89 89.03
15) -7 * -8 56
16) 56 - -8 64
17) 8 + -0.3 7.7
18) -191 - 4 -195
19) -6 * 20 -120
20) -0.35 - 0.05 -0.4
21) 7 / 2.5 2.8
22) 5560 - 11 5549
23) 0.08 + 0.86 0.94
24) -0.003 * 3040 -9.12
25) 0.2 + 0.764 0.964
26) 44 + -88 -44
27) 0.007 * 7950 55.65
28) 498 + 102 600
29) 810 + 6 816
30) 0.094 - -0.003 0.097
31) 271 + 443 714
32) 0.07 / 2 0.035
33) 0.005 - -8 8.005
34) 0.04 * 5 0.2
35) 6822 + 3144 9966
36) 2 - 0.06 1.94
37) 825 + -95 730
38) 0.3 - -8 8.3
39) 4 + 83 87
40) 0.045 * 86 3.87
41) 97.6 + 614 711.6
42) -0.031 / 0.05 -0.62
43) -9 - -783 774
44) -8 * -4.5 36
45) 6 * 4 24
46) -0.04 + 3 2.96
47) 1.44 + 0.45 1.89
48) 0.9 - 7 -6.1
49) 7 + 5380 5387
50) -52 + 3 -49
51) 64 - 7 57
52) -58.6 / 1 -58.6
53) 0.09 - -0.43 0.52
54) 4.6 + -85 -80.4
55) 7 - 0.001 6.999
56) 6 + -0.09 5.91
57) 3.6 - -7.7 11.3
58) 8.2 + 208 216.2
59) 33.99 + 0.48 34.47
60) 9 - 0.005 8.995
61) 38 - -46 84
62) 0.051 * 82 4.182
63) 41 - 3 38
64) 290 / -1 -290
65) 360 * -0.007 -2.52
66) 53 + -955 -902
67) 1 * 3 3
68) 0.13 - -3 3.13
69) 1.7 + 0.09 1.79
70) -8 * -0.089 0.712
71) 85 + -332 -247
72) 0.03 * 3 0.09
73) 57 - -5103 5160
74) -8.1 + 51 42.9
75) -69 * 0.07 -4.83
76) -0.39 + -9 -9.39
77) 87 - 79.1 7.9
78) 4 + 37 41
79) 5.5 - 0.01 5.49
80) 0.009 + 9 9.009


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