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) 10.9 + 6 16.9
2) 38 + -8 30
3) -27.6 * -1 27.6
4) -3.57 + 0.09 -3.48
5) 364 + -26 338
6) 541 * 0.1 54.1
7) 0.377 * 2 0.754
8) 9 - 2.1 6.9
9) 52 + 878 930
10) 0.04 * 0.2 0.008
11) 4 - -0.049 4.049
12) 8 + 3 11
13) 0.753 + 0.53 1.283
14) 88 - -6.7 94.7
15) -36 - 1 -37
16) 56 + 1 57
17) 605 * 5 3025
18) -55 * 5 -275
19) 8 + 934 942
20) 87.43 - 0.3 87.13
21) 0.08 * -97 -7.76
22) 3 + 93 96
23) -44 - -8834 8790
24) 6.427 + -0.99 5.437
25) 0.05 - 9.5 -9.45
26) 6 + -242 -236
27) -0.088 - -0.999 0.911
28) 12.6 * 0.09 1.134
29) 0.9 - 79 -78.1
30) 2 * 0.002 0.004
31) -0.4 * -7.735 3.094
32) 0.1 * 1 0.1
33) -8 + -48 -56
34) 9 - 0.618 8.382
35) 40 - -53 93
36) -30.9 + 72.05 41.15
37) -556 * 1 -556
38) 0.07 / 2 0.035
39) 6 + -4.309 1.691
40) 82 + -6.9 75.1
41) -0.4 - -647.2 646.8
42) 0.03 - 2 -1.97
43) 0.6 + 17 17.6
44) -0.8 + 7.5 6.7
45) 7 - 30 -23
46) 0.69 / -0.023 -30
47) -3 - 10 -13
48) 0.01 * 78 0.78
49) 51 / 0.06 850
50) 89 - 98 -9
51) 4 + 64 68
52) -44 - -0.4 -43.6
53) 0.004 / 2 0.002
54) 0.3 + 0.735 1.035
55) -5.9 + 7.478 1.578
56) 8 - -170 178
57) 11 + 64.6 75.6
58) 0.056 + 1 1.056
59) -0.255 - -0.035 -0.22
60) -512 * 1.75 -896
61) 0.114 + 0.81 0.924
62) 386 + 0.7 386.7
63) 4967 + 684 5651
64) 19.3 - -40 59.3
65) 0.29 + 0.009 0.299
66) -79.6 + 13 -66.6
67) 56 * 3 168
68) 9.01 - 0.489 8.521
69) -0.81 + 6 5.19
70) -58.6 - 1 -59.6
71) 0.81 - 0.006 0.804
72) 0.7 + 0.055 0.755
73) -26 - 555 -581
74) -4 + -1 -5
75) 0.09 - 9.1 -9.01
76) 557 / 25 22.28
77) 7 - 6.4 0.6
78) 0.9 / -0.05 -18
79) 949 * 2 1898
80) 9 + -6 3


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