
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) |
-6.7 / 0.05 |
-134 |
| 2) |
0.04 / -0.005 |
-8 |
| 3) |
8 + 7.1 |
15.1 |
| 4) |
-79 / -0.01 |
7900 |
| 5) |
4919 + -10 |
4909 |
| 6) |
0.8 * -8 |
-6.4 |
| 7) |
0.2 - 7.7 |
-7.5 |
| 8) |
-354 / 6 |
-59 |
| 9) |
-40 - -5357 |
5317 |
| 10) |
0.6 + 7 |
7.6 |
| 11) |
7 + 7880 |
7887 |
| 12) |
9170 - 345 |
8825 |
| 13) |
74.3 * 0.09 |
6.687 |
| 14) |
61 + 7 |
68 |
| 15) |
0.5 * -73 |
-36.5 |
| 16) |
75 / 2 |
37.5 |
| 17) |
2 + 407 |
409 |
| 18) |
317 - 0.9 |
316.1 |
| 19) |
5 + -92 |
-87 |
| 20) |
-0.94 + 17 |
16.06 |
| 21) |
2.6 - 2 |
0.6 |
| 22) |
0.127 + 0.03 |
0.157 |
| 23) |
28 + 8 |
36 |
| 24) |
-1 * -55 |
55 |
| 25) |
-4 / 0.005 |
-800 |
| 26) |
0.25 * 526.4 |
131.6 |
| 27) |
7 - -665 |
672 |
| 28) |
0.05 + 17 |
17.05 |
| 29) |
-305 + 865 |
560 |
| 30) |
50.3 + 881 |
931.3 |
| 31) |
-59 + -0.8 |
-59.8 |
| 32) |
616 - -0.1 |
616.1 |
| 33) |
0.025 * 8988 |
224.7 |
| 34) |
-19.6 + 5.3 |
-14.3 |
| 35) |
-0.02 - 7 |
-7.02 |
| 36) |
261 / 0.5 |
522 |
| 37) |
8.84 + 6 |
14.84 |
| 38) |
4 * 0.007 |
0.028 |
| 39) |
-0.078 + 0.083 |
0.005 |
| 40) |
592 - 55 |
537 |
| 41) |
6.876 / 0.08 |
85.95 |
| 42) |
825 - -7 |
832 |
| 43) |
-3 + 974.5 |
971.5 |
| 44) |
34.24 - -0.3 |
34.54 |
| 45) |
0.4 - 28 |
-27.6 |
| 46) |
0.068 * 8 |
0.544 |
| 47) |
6 + 8.1 |
14.1 |
| 48) |
2.97 + -8 |
-5.03 |
| 49) |
-6 - 63.9 |
-69.9 |
| 50) |
-5.3 + 1.4 |
-3.9 |
| 51) |
1 - 0.038 |
0.962 |
| 52) |
0.2 + 41 |
41.2 |
| 53) |
-5301 + 7755 |
2454 |
| 54) |
0.4 - -7 |
7.4 |
| 55) |
6 * 8.2 |
49.2 |
| 56) |
-91 + 5 |
-86 |
| 57) |
5 + -0.41 |
4.59 |
| 58) |
-8 - -0.9 |
-7.1 |
| 59) |
-7 * 72 |
-504 |
| 60) |
-3 + 45 |
42 |
| 61) |
6.9 * 0.8 |
5.52 |
| 62) |
643 + 443 |
1086 |
| 63) |
946 - 660 |
286 |
| 64) |
4 - 7 |
-3 |
| 65) |
613 + 271 |
884 |
| 66) |
6892 + 141 |
7033 |
| 67) |
960 / -1 |
-960 |
| 68) |
-7 - -74 |
67 |
| 69) |
897 * -0.01 |
-8.97 |
| 70) |
44 - 0.5 |
43.5 |
| 71) |
50 + 5 |
55 |
| 72) |
4 - -5.5 |
9.5 |
| 73) |
31 + 0.41 |
31.41 |
| 74) |
-78 - -0.9 |
-77.1 |
| 75) |
0.066 + 0.04 |
0.106 |
| 76) |
57 - -46 |
103 |
| 77) |
80.9 + 301 |
381.9 |
| 78) |
742 * 0.6 |
445.2 |
| 79) |
8577 + 577 |
9154 |
| 80) |
966 * 1 |
966 |
|
|
Quick links:
Practice:
Easy |
Medium |
Hard
Test:
Easy |
Medium |
Hard
Customized