
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) |
0.506 + 9 |
9.506 |
| 2) |
0.05 * 6234 |
311.7 |
| 3) |
1 - 4 |
-3 |
| 4) |
71 - -4 |
75 |
| 5) |
0.051 + 4 |
4.051 |
| 6) |
4 * -0.67 |
-2.68 |
| 7) |
2 - -4.9 |
6.9 |
| 8) |
-80.6 + 75 |
-5.6 |
| 9) |
3 - -5724 |
5727 |
| 10) |
-451 + 7062 |
6611 |
| 11) |
-4 + 0.1 |
-3.9 |
| 12) |
0.01 - -9.68 |
9.69 |
| 13) |
33.9 - 7 |
26.9 |
| 14) |
0.073 + 7 |
7.073 |
| 15) |
4268 - -4850 |
9118 |
| 16) |
57 + 6 |
63 |
| 17) |
56 + 66 |
122 |
| 18) |
5 + 3 |
8 |
| 19) |
0.22 / 0.5 |
0.44 |
| 20) |
1 * 5685 |
5685 |
| 21) |
-3.24 - 5 |
-8.24 |
| 22) |
242.3 - -67.3 |
309.6 |
| 23) |
27 - 815 |
-788 |
| 24) |
21 * 201 |
4221 |
| 25) |
951 / 12 |
79.25 |
| 26) |
0.662 - -4.9 |
5.562 |
| 27) |
1 + 94 |
95 |
| 28) |
-1 + 90 |
89 |
| 29) |
-24.6 - 7 |
-31.6 |
| 30) |
5403 + -3 |
5400 |
| 31) |
94 * -4.5 |
-423 |
| 32) |
42.46 - 6.02 |
36.44 |
| 33) |
1 + 87 |
88 |
| 34) |
6 + 3.211 |
9.211 |
| 35) |
-0.4 * 7 |
-2.8 |
| 36) |
84 + 1 |
85 |
| 37) |
5810 - 6587 |
-777 |
| 38) |
0.7 * 5 |
3.5 |
| 39) |
-1 - 0.55 |
-1.55 |
| 40) |
637 - -0.3 |
637.3 |
| 41) |
0.1 * 62 |
6.2 |
| 42) |
595 / 1 |
595 |
| 43) |
-0.006 + 4.894 |
4.888 |
| 44) |
-0.026 / -0.08 |
0.325 |
| 45) |
4 - -0.91 |
4.91 |
| 46) |
-72 + 37 |
-35 |
| 47) |
8 * 4 |
32 |
| 48) |
78 - -3 |
81 |
| 49) |
-209 + 6 |
-203 |
| 50) |
898 + -3 |
895 |
| 51) |
392 / -4 |
-98 |
| 52) |
-0.03 + 5 |
4.97 |
| 53) |
91.24 - 60.41 |
30.83 |
| 54) |
0.4 + -19.2 |
-18.8 |
| 55) |
87 * 68 |
5916 |
| 56) |
-3 + -4 |
-7 |
| 57) |
23 - 49.9 |
-26.9 |
| 58) |
-27 + -2.8 |
-29.8 |
| 59) |
368 + 224 |
592 |
| 60) |
-301 - 5 |
-306 |
| 61) |
9 * -5 |
-45 |
| 62) |
71.65 + 6 |
77.65 |
| 63) |
0.001 - -0.1 |
0.101 |
| 64) |
-447 - 4 |
-451 |
| 65) |
-2 / -10 |
0.2 |
| 66) |
-379 * -1 |
379 |
| 67) |
0.7 + 27.5 |
28.2 |
| 68) |
0.004 * 2 |
0.008 |
| 69) |
-20 * -4.4 |
88 |
| 70) |
5 - 319 |
-314 |
| 71) |
78 / 3 |
26 |
| 72) |
-32 - 0.7 |
-32.7 |
| 73) |
456 + -486 |
-30 |
| 74) |
-6 - 4 |
-10 |
| 75) |
60 / 1 |
60 |
| 76) |
93 + 625.7 |
718.7 |
| 77) |
0.1 + 5 |
5.1 |
| 78) |
7 - 61 |
-54 |
| 79) |
-8.35 + 9 |
0.65 |
| 80) |
6879 + 3 |
6882 |
|
|
Quick links:
Practice:
Easy |
Medium |
Hard
Test:
Easy |
Medium |
Hard
Customized