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) 1 + 0.009 1.009
2) -0.064 + 9.542 9.478
3) -4 * 88 -352
4) 660 - 145 515
5) 0.87 - -0.11 0.98
6) 38 - 81 -43
7) 712 + -6 706
8) 98 / 4 24.5
9) 0.081 + 6.5 6.581
10) 1 - 90.2 -89.2
11) 0.002 - -0.04 0.042
12) 9375 - 993 8382
13) 62 - 22.8 39.2
14) 0.001 * 1 0.001
15) 80 / 0.4 200
16) -84 + 43.8 -40.2
17) 9 * 850 7650
18) 0.5 + 635 635.5
19) 0.47 / 5 0.094
20) -2.5 * 0.08 -0.2
21) -7 + 26 19
22) 30 - -89 119
23) -770 - 5 -775
24) 75 - 5 70
25) 0.01 * -9810 -98.1
26) 58 + 20 78
27) 1 + 12.2 13.2
28) -93 * -0.095 8.835
29) 4 - 675 -671
30) 834.6 - 9.5 825.1
31) 234 * 0.9 210.6
32) 120 + 8 128
33) 17.75 + 8.6 26.35
34) 0.3 * -32.1 -9.63
35) 5 + 3 8
36) 0.95 - -40.85 41.8
37) 3 * 74 222
38) 0.357 + 0.4 0.757
39) 675 + 62 737
40) -61 * -0.11 6.71
41) 4 - -91.9 95.9
42) 304 + 0.6 304.6
43) 2 + 10.6 12.6
44) 0.6 - -681 681.6
45) 0.03 + 65 65.03
46) -0.074 * 35 -2.59
47) -45 - 6.3 -51.3
48) 7 - 799 -792
49) -764.5 + 996 231.5
50) -1.495 + 3 1.505
51) 5.8 - 18 -12.2
52) -240 - 6 -246
53) 0.03 * 5 0.15
54) 5047 - -9 5056
55) -54 - 193 -247
56) 981 + -43 938
57) 612 - 4 608
58) 7 * 0.999 6.993
59) -0.5 - 1 -1.5
60) 4.3 - 0.005 4.295
61) 84 * 27 2268
62) -0.8 + -0.33 -1.13
63) -19 - 0.3 -19.3
64) -5 - 11.2 -16.2
65) 21 + -5.45 15.55
66) 49 - 460 -411
67) -201 + 34 -167
68) -0.24 / -0.01 24
69) -0.6 * -0.44 0.264
70) -291 - -480 189
71) -4 + 0.9 -3.1
72) 2 - -425 427
73) -8 - -0.08 -7.92
74) 0.07 - -1 1.07
75) 0.28 + 0.04 0.32
76) 3.16 - -7 10.16
77) -8 + 436 428
78) 3046 - -19 3065
79) -0.3 + 4 3.7
80) -0.7 * -5 3.5


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