https://padlet.com/lauravale321/5c8dzn6p7f8p Ripassiamo tutto en-us 2017-11-03 08:27:18 UTC 2017-11-03 20:26:36 UTC hello@padlet.com lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203447621 I numeri naturali 
Sono 0-1-2-3-4-5-6-7-8-9 ecc.. si chiamano naturali perché si ottengono dallo zero fino all’infinito.
Perciò l’insieme dei numeri naturali di lettera N è ordinata ]]> 2017-11-03 19:00:33 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203447621 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203452309 n+1=3+1=4
n-1=3-1=2]]> 2017-11-03 19:15:51 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203452309 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203453076 Il Sistema di numerazione decimale si chiama decimale perché utilizza 10 simboli che sono detti cifra 0-1-2]]> 2017-11-03 19:18:28 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203453076 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203455507 Esempio 34]]> 2017-11-03 19:25:06 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203455507 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203460524 I numeri pari e dispari 
I numeri pari sono quelli che finiscono con le cifre 0-2-4-6-8
Invece i numeri dispari sono quelli che finiscono con le cifre 1-3-5-7-9]]> 2017-11-03 19:44:05 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203460524 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203461254 Esempio numero pari 
152 
Numero dispari 
275]]> 2017-11-03 19:46:34 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203461254 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203469031 La sottrazione e l’operazione che associa due numeri detti minuendo e sottraendo ]]> 2017-11-03 20:20:11 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203469031 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203469623 Esempio 8,9-2,925=5,975]]> 2017-11-03 20:22:32 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203469623 lauravale321 https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203470490 2017-11-03 20:26:19 UTC https://padlet.com/lauravale321/5c8dzn6p7f8p/wish/203470490