
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) |
136 * 25.5 |
3468 |
| 2) |
-0.9 - 7 |
-7.9 |
| 3) |
842 + -20 |
822 |
| 4) |
40.15 / -11 |
-3.65 |
| 5) |
460 - 550.1 |
-90.1 |
| 6) |
0.75 + 7.35 |
8.1 |
| 7) |
0.9 - 79 |
-78.1 |
| 8) |
115 + 319 |
434 |
| 9) |
3.61 - -77.9 |
81.51 |
| 10) |
16 + -60 |
-44 |
| 11) |
22 * -7 |
-154 |
| 12) |
7664 + -34 |
7630 |
| 13) |
-79 - -9655 |
9576 |
| 14) |
13 * -1.5 |
-19.5 |
| 15) |
0.084 / 0.5 |
0.168 |
| 16) |
9 + 78.85 |
87.85 |
| 17) |
1200 * 0.059 |
70.8 |
| 18) |
-90 * 2.4 |
-216 |
| 19) |
7224 + -45 |
7179 |
| 20) |
878 - -5.1 |
883.1 |
| 21) |
-1 * 17 |
-17 |
| 22) |
0.06 + 0.2 |
0.26 |
| 23) |
0.36 + 3 |
3.36 |
| 24) |
-3167 + 6536 |
3369 |
| 25) |
5574 - 784 |
4790 |
| 26) |
-574 + 8 |
-566 |
| 27) |
-14 + 7821 |
7807 |
| 28) |
-1 + 720 |
719 |
| 29) |
1.07 * 6 |
6.42 |
| 30) |
9.99 / 333 |
0.03 |
| 31) |
0.23 + 54 |
54.23 |
| 32) |
-9 + -0.2 |
-9.2 |
| 33) |
787 - 790 |
-3 |
| 34) |
283.5 - 9 |
274.5 |
| 35) |
210 + -3 |
207 |
| 36) |
885 * 1.4 |
1239 |
| 37) |
7257 + -139 |
7118 |
| 38) |
-3.7 - 4.59 |
-8.29 |
| 39) |
5 * 0.898 |
4.49 |
| 40) |
83 + -394 |
-311 |
| 41) |
5 * 19 |
95 |
| 42) |
-6 / -3 |
2 |
| 43) |
9 + 7.69 |
16.69 |
| 44) |
170 * 2 |
340 |
| 45) |
42.88 * 1 |
42.88 |
| 46) |
9 - 5 |
4 |
| 47) |
-9 * -92 |
828 |
| 48) |
-50 * -0.3 |
15 |
| 49) |
5 + 0.202 |
5.202 |
| 50) |
8 - 6 |
2 |
| 51) |
0.7 - 91 |
-90.3 |
| 52) |
0.09 + 0.007 |
0.097 |
| 53) |
-37 + 71 |
34 |
| 54) |
793 * 3 |
2379 |
| 55) |
-7 + 0.3 |
-6.7 |
| 56) |
59 + 4292 |
4351 |
| 57) |
-39 / -0.06 |
650 |
| 58) |
-3 / -0.005 |
600 |
| 59) |
-0.35 / -0.5 |
0.7 |
| 60) |
-46 + 0.3 |
-45.7 |
| 61) |
-24 + 53.05 |
29.05 |
| 62) |
3 * 2 |
6 |
| 63) |
1.2 - 80 |
-78.8 |
| 64) |
74 + -9.53 |
64.47 |
| 65) |
86 + -0.19 |
85.81 |
| 66) |
4.6 * -3 |
-13.8 |
| 67) |
0.2 - -502 |
502.2 |
| 68) |
-3 - 80 |
-83 |
| 69) |
1270 + 809 |
2079 |
| 70) |
-0.3 * 0.4 |
-0.12 |
| 71) |
4.2 - 0.98 |
3.22 |
| 72) |
0.002 - -4 |
4.002 |
| 73) |
0.2 + 7 |
7.2 |
| 74) |
-2 - 0.66 |
-2.66 |
| 75) |
570 / -3 |
-190 |
| 76) |
8.5 - 6.59 |
1.91 |
| 77) |
675 + -563 |
112 |
| 78) |
3 - 2 |
1 |
| 79) |
45.55 + 0.5 |
46.05 |
| 80) |
8 - -22 |
30 |
|
|
Quick links:
Practice:
Easy |
Medium |
Hard
Test:
Easy |
Medium |
Hard
Customized