**• **It is very easy to prepare closed-answer quizzes with built-in answer.
An example here, on the *structure of the terms*: quiz-1

See here the "simple"** code **of "quiz-1".

Similar | exercises: | |||

quiz-2 | quiz-3 | quiz-4 | ||

quiz-5 | quiz-6 | quiz-7 | ||

quiz-8 | quiz-9 |

**• **Another example of a* closed-ended *question:
quiz-A (italian) or quiz-A (english).

**• **Other examples, of* histograms * (bar charts, if the categories into which the data are classified are ordered, are nothing more than particular histograms: just think that the categories can be represented with natural numbers!), which you can replicate by changing the data: quiz-B,
here: quiz-C,
here: quiz-D,
here: quiz-E.

Two examples (which you can modify by changing the data): quiz-F, here: quiz-G.

Another example (which you can modify by changing the data): quiz-H.

**• **You can also easily prepare quizzes involving* flow charts.* See.

**• **You can easily build exercises related to the various scripts on* numbers *(online or downloaded to your computer): some examples.

**(1) ** By using this program, get 98 by pressing the least number of keys.

**(2) ** By using this program, get −8.89 by pressing the least number of keys.

**(3) ** By using this program, starting from the hour 0:00, go as far as the time 6:45 by typing as few keys as possible.

**(4) ** Using this program find the greatest common divisor of 152748 and 1980
[I find: 1 2 3 4 6 9 12 18 36 4243 8486 12729 16972 25458 38187 50916 76374 152748, and:
1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980;
therefore is: 36; you can use this too].

**(5) ** What is the* probability *that, throwing two well balanced dice, a number less than 3 comes out? Check answer
by using this program.

**(6) ** By using this program, find the* fraction *equal to 0.857142857142857...
[M=857142, N=99999, ... -> 6/7].

**(7) ** By using this program,
find the angles of an isosceles* triangle *knowing that the side different from the others has length 6 and the corresponding height has length 5
(61.93°, 59.04°, 59.04°).

**(8) ** By using this program, find the solution (rounded to 5 digits) of the* system*:
x+4/5·y+3·z=5, 2·x-y+9/2·z=11, -y+z=3
[I find: 1.0976, -1.3415, 1.6585].