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) -28.6 + -9.5 -38.1
2) -21 * 8 -168
3) 9138 - 434 8704
4) -0.002 / 0.04 -0.05
5) 3.253 - -0.857 4.11
6) 7 + -0.981 6.019
7) 0.6 / 0.004 150
8) 74 * 59 4366
9) 1373 * 3 4119
10) -0.09 - -88.7 88.61
11) 39 * -9 -351
12) -159 - 6 -165
13) -1 * 0.67 -0.67
14) 674.4 / 0.1 6744
15) 4 - 0.778 3.222
16) -0.003 * -4 0.012
17) 51 * 5.1 260.1
18) 2.6 - 0.9 1.7
19) -3 + 9 6
20) -753 + 63 -690
21) 6 - 37.7 -31.7
22) -0.344 * -0.5 0.172
23) 8 * 0.7 5.6
24) 48 - 7.47 40.53
25) 91.1 - 62.25 28.85
26) -75 + 271 196
27) 6.353 - 3 3.353
28) -7 + -4.3 -11.3
29) -0.7 + 0.917 0.217
30) 6 - 699 -693
31) 7.23 / 1 7.23
32) 6 * 64.5 387
33) -38 + -6.3 -44.3
34) 2.54 - 0.023 2.517
35) 0.004 - -0.3 0.304
36) 2528 + 95 2623
37) 61 - 4 57
38) -7 + 498 491
39) -45.3 / 1 -45.3
40) 0.03 / 0.2 0.15
41) -2 + 8.8 6.8
42) 756 - 946 -190
43) 2 + 22 24
44) 0.97 + -0.481 0.489
45) 0.56 + 9.6 10.16
46) 0.8 + 1 1.8
47) 2.86 * 9 25.74
48) 1 + 99 100
49) -20 - -2 -18
50) 3 * 0.002 0.006
51) 9 - 0.5 8.5
52) -2.8 * 3.3 -9.24
53) 12 + 0.79 12.79
54) 9 + -0.8 8.2
55) -888 + 1 -887
56) 2478 - 6 2472
57) -2 + 2 0
58) 4.78 - 0.72 4.06
59) 42 - -735 777
60) 56.52 - -5.14 61.66
61) 0.4 / 0.005 80
62) -60.83 + 94 33.17
63) 0.09 * 3.1 0.279
64) -90 * 0.05 -4.5
65) 546 * 6 3276
66) -2 - -0.04 -1.96
67) 532 + 7811 8343
68) 0.006 - -3 3.006
69) 607 + 7 614
70) 2700 / 2 1350
71) 3.08 - 0.008 3.072
72) 8.82 - -0.001 8.821
73) 7 - -0.342 7.342
74) 23 / 4 5.75
75) 24 + 675 699
76) 9.98 * 3 29.94
77) 20 - -63.9 83.9
78) -0.16 + 8 7.84
79) 2 * 6 12
80) 0.01 + 0.001 0.011


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