
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.
}
elseif( $_GET['quickselect'] == 'math_medium' )
{
$level = "Medium";
$_GET['maxTermLength'] = 5;
$_GET['maxTermDecimalLength'] = 4;
$_GET['maxAnswerLength'] = 5;
$_GET['maxAnswerDecimalLength'] = 4;
$_GET['minOperations'] = 1;
$_GET['maxOperations'] = 4;
?>
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.
}
elseif( $_GET['quickselect'] == 'math_hard' )
{
$level = "Hard";
$_GET['maxTermLength'] = 6;
$_GET['maxTermDecimalLength'] = 5;
$_GET['maxAnswerLength'] = 6;
$_GET['maxAnswerDecimalLength'] = 5;
$_GET['minOperations'] = 3;
$_GET['maxOperations'] = 4;
?>
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.
}
else
{
$generateTest = false;
echo 'Invalid quick select: ' . $_GET['quickselect'];
}
}
// Clean start default variables
if( ! isset( $_GET['posted'] ) )
{
$_GET['useNegativeVariables'] = 'on';
$_GET['optimizeSolvability'] = 'on';
$_GET['preventTooSimple'] = 'on';
$_GET['showSetup'] = 'on';
}
// Generate test?
if( $generateTest )
{
// Normalize values
if( ! isset( $_GET['questionCount'] ) ||
! is_numeric( $_GET['questionCount'] ) ||
$_GET['questionCount'] <= 0 ||
$_GET['questionCount'] > 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
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) |
6 - 8 |
-2 |
2) |
90 * -0.007 |
-0.63 |
3) |
0.9 - 94 |
-93.1 |
4) |
428 + -1 |
427 |
5) |
3 - 80 |
-77 |
6) |
-9 * 4 |
-36 |
7) |
-0.62 + -0.3 |
-0.92 |
8) |
1 * 956 |
956 |
9) |
-539 + 39 |
-500 |
10) |
3.34 - -0.004 |
3.344 |
11) |
0.6 * 4 |
2.4 |
12) |
-0.76 + 2.308 |
1.548 |
13) |
77.06 + 9 |
86.06 |
14) |
8 * 386 |
3088 |
15) |
20 - 5.8 |
14.2 |
16) |
81 - 0.93 |
80.07 |
17) |
613 + 97.4 |
710.4 |
18) |
5 * 7 |
35 |
19) |
-1.5 * 564 |
-846 |
20) |
-5 + 8.111 |
3.111 |
21) |
-1 - -159.8 |
158.8 |
22) |
6.9 + 276 |
282.9 |
23) |
9 - 0.06 |
8.94 |
24) |
103 + 5712 |
5815 |
25) |
-0.02 / 0.08 |
-0.25 |
26) |
78.6 - -320 |
398.6 |
27) |
2 - -18 |
20 |
28) |
-6.3 + 12 |
5.7 |
29) |
0.2 * 0.02 |
0.004 |
30) |
-0.09 + -3 |
-3.09 |
31) |
4.7 - -14 |
18.7 |
32) |
3 + -82.8 |
-79.8 |
33) |
-58 - -60 |
2 |
34) |
-0.01 / 1 |
-0.01 |
35) |
3215 - 412 |
2803 |
36) |
8.7 * 0.28 |
2.436 |
37) |
-0.034 - -4 |
3.966 |
38) |
8 - -0.012 |
8.012 |
39) |
-74.6 + -4 |
-78.6 |
40) |
0.09 * 644 |
57.96 |
41) |
-59 + -0.2 |
-59.2 |
42) |
0.09 / 3 |
0.03 |
43) |
8 - -0.6 |
8.6 |
44) |
-0.07 / 0.05 |
-1.4 |
45) |
8 - -3.45 |
11.45 |
46) |
401 - -11 |
412 |
47) |
0.9 + -0.5 |
0.4 |
48) |
-6.9 / 0.075 |
-92 |
49) |
5451 + 682 |
6133 |
50) |
4449 / 6 |
741.5 |
51) |
4 + 3405 |
3409 |
52) |
0.18 - -0.04 |
0.22 |
53) |
886 + 33 |
919 |
54) |
23 - -0.4 |
23.4 |
55) |
-7 * -0.01 |
0.07 |
56) |
3 - 253 |
-250 |
57) |
-7 - -0.06 |
-6.94 |
58) |
-90 * -67 |
6030 |
59) |
9 - 92 |
-83 |
60) |
0.03 * -91 |
-2.73 |
61) |
0.02 - 2 |
-1.98 |
62) |
3.92 - -9 |
12.92 |
63) |
81.2 * 0.02 |
1.624 |
64) |
9 + -0.02 |
8.98 |
65) |
1926 + 3 |
1929 |
66) |
-0.44 + 83 |
82.56 |
67) |
0.001 - -0.55 |
0.551 |
68) |
-28 / 0.1 |
-280 |
69) |
0.4 * 627 |
250.8 |
70) |
-0.52 / 2 |
-0.26 |
71) |
64 - 61 |
3 |
72) |
2 + 6 |
8 |
73) |
0.3 - 0.09 |
0.21 |
74) |
1 + 0.002 |
1.002 |
75) |
-5 + -489 |
-494 |
76) |
74 + 2 |
76 |
77) |
0.02 / -1 |
-0.02 |
78) |
21.8 * 31 |
675.8 |
79) |
330 - -3 |
333 |
80) |
3 / 0.006 |
500 |
|
|
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Medium |
Hard
Test:
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Medium |
Hard
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