
Sisteme de numeraţie
Authored by Marcelina Mocanu
Mathematics
9th Grade - University
Used 11+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Orice număr reprezentat în baza 10, având ultima cifră zero este:
impar
par
multiplu de 5
multiplu de 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Orice număr reprezentat în baza 2, având ultima cifră zero este:
impar
par
multiplu de 5
multiplu de 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În ce bază de numeraţie b avem 1+1=10?
b=10
b=5
b=2
Nu există.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În baza 10, pentru orice număr natural n cu 1<n<10 avem 99⋅n=a9b, unde a+b este egal cu
6
7
8
9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În baza 10, scăzând dintr-un număr abc răsturnatul său cba obţinem totdeauna un număr cu cifra zecilor 9 şi a+c=9?
NU
DA
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Numerele scrise în baza 10, de forma abcabc, sunt totdeauna divizibile cu
7
9
11
13
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se spune că 25 DEC=31 OCT deoarece:
25⋅10=31⋅8 intr-o anumită bază de numeraţie
2⋅10+5=3⋅8+1
Unii confundă datele calendaristice
Există diferenţe între calendarul gregorian şi calendarul iulian
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