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) -91 + 0.1 -90.9
2) 4 * 0.1 0.4
3) 49 / 0.08 612.5
4) 0.84 + 46.4 47.24
5) -98 - 592 -690
6) 4 + 2.11 6.11
7) 0.004 - -0.009 0.013
8) 9 * 65 585
9) -807 * 1 -807
10) 9 + 0.008 9.008
11) 3.5 - 88 -84.5
12) 8.541 + -0.08 8.461
13) 975.9 + -9.2 966.7
14) 0.047 / 0.01 4.7
15) 99 * 1 99
16) 3 + 7939 7942
17) 9 + 43 52
18) 0.7 - 9 -8.3
19) 6 + 0.003 6.003
20) 87 + 9 96
21) -361.1 * -1 361.1
22) 4.757 - -0.006 4.763
23) 9 * 837 7533
24) -5 + 30 25
25) -6 + 989 983
26) 307 + 0.5 307.5
27) 0.004 / 0.1 0.04
28) 2.44 + -7 -4.56
29) 5 + -7 -2
30) 0.3 * 107.5 32.25
31) 6.61 - 4.73 1.88
32) 7 * 12.07 84.49
33) -4 + -50 -54
34) 6 / -0.4 -15
35) 0.03 - 2 -1.97
36) 428.9 - 6 422.9
37) 159 - -9404 9563
38) 0.656 - 7.126 -6.47
39) 61 + 4743 4804
40) 28 - 807 -779
41) 0.08 - -8.81 8.89
42) 2 + -3.24 -1.24
43) 0.005 * 1 0.005
44) 3 + 0.417 3.417
45) 9.6 + 74.23 83.83
46) 0.5 - 0.99 -0.49
47) 2 + 2026 2028
48) 0.009 * 69 0.621
49) 0.8 + 0.2 1
50) -0.31 / -0.1 3.1
51) 89.2 - -53 142.2
52) -0.005 + 0.009 0.004
53) 286 * 0.9 257.4
54) -7 - -0.05 -6.95
55) 693 / -46.2 -15
56) 6541 + 8 6549
57) 5.33 + 9.8 15.13
58) 8 * 0.006 0.048
59) 14.5 - 54 -39.5
60) 5 - 9 -4
61) -46.8 - 1 -47.8
62) 4 + 12 16
63) 2 - 0.721 1.279
64) -0.4 * 62 -24.8
65) 5 * -1 -5
66) 33 - -19 52
67) 75 + 0.5 75.5
68) 5 + 7.8 12.8
69) -9 - -312 303
70) -0.007 + 6 5.993
71) 2.2 * 89 195.8
72) 404 - 283.7 120.3
73) 0.8 - -249 249.8
74) 781 + -3 778
75) 0.9 - 0.95 -0.05
76) 394 + 0.8 394.8
77) -0.02 * 7 -0.14
78) 5 + 66 71
79) -3 - 4 -7
80) 1.7 * 3.9 6.63


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