The second of Peter the Magician's Puzzle Activities.
Inspired by the TV game, "Letters and Numbers".
Players have to make a target number from 3 single digit numbers using only plus and multiply.
There are 10 levels which can be set by the player.
| Version | 27 |
|---|---|
| Works with | Sugar: 0.96 – 0.100 |
| Updated | December 30, 2013 |
| Developer | mulawa1 |
| Rating | Not yet rated |
| Downloads | 16,188 |
More about this activity
The lowest level uses 3 digits - all less than 6. Each sum has both signs the same.
The highest level uses any 4 digits.
A good exercise for students is to work out the system behind the levels.
Unlike the TV game, all the digits must be used.
Some combinations really stretch your mind - this one had me scratching my head for quite a while: 256 from 6, 7, 4 & 6.
It's surprising where this simple activity leads:
* Operator precedence eg 1+2x3=7 NOT 9
* Multiplying by 1 leaves a number unchanged.
* Multiplying is much "heavier" than adding eg Big targets probably need all multiplies.
* Although subtraction and division are not available, they are often useful tools eg 22 from 4,2,7 - dividing the 22 by 2 makes the answer obvious.
Developer Comments
I'm hopeful that the inclusion of a scoring mechanism will lead to much competition between students.
The current source master is:
https://github.com/walterbender/numbers
What do you think?
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Release Notes
27
* GTK3 port by Ignacio Rodriguez
* Fixed preview problem
* New Sugar-compliant icon
* No sharing
* Fix problem with non-Sugar launch
* pep8 cleanup
* Monochrome icons
* Aggressive Sugar stylizing
* Handle screen rotation
