Probleme care se rezolvă folosind divizibilitatea (1)
Quiz
•
Other
•
8th Grade
•
Practice Problem
•
Hard
Boldea Daniela
Used 1+ times
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19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considerăm numărul natural x, care se împarte la 8 , 12 , respectiv 15, obţinându-se resturile 7 , 11 şi 14. Pentru a determina valoarea lui x se foloseşte
Teorema împărţirii cu rest , D=Î ·C+R .
O formulă de calcul prescurtat.
2.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Considerăm numărul natural x, care se împarte la 8 , 12 , respectiv 15, obţinându-se resturile 7 , 11 şi 14. Pentru a determina valoarea lui x, vom scrie
x = 8 · c1 +7
x = 11 · c2 +14
x =12· c2 + 11
x = 15 · c 3 +14
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Considerăm numărul natural x, care se împarte la 8 , 12 , respectiv 15, obţinându-se resturile 7 , 11 şi 14.
Pentru a determina valoarea lui x, vom aduna la fiecare ecuaţie
1 , deoarece 8-7 = 12-11 = 15-14 =1
7 ,11, şi 14.
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Considerăm numărul natural x, care se împarte la 8 , 12 , respectiv 15, obţinându-se resturile 7 , 11 şi 14. Pentru a determina valoarea lui x, vom da factor comun în dreapta, obţinând
x+1=8·(c1 +1)
x=12·(c2+1)
x+1=12·(c2+1)
x+1=15·(c3+1)
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Considerăm numărul natural x, care se împarte la 8 , 12 , respectiv 15, obţinându-se resturile 7 , 11 şi 14.
Pentru a determina valoarea lui x, observăm că x+1 este
multiplu comun al numerelor 8 ,12 , 15
divizor comun al numerelor 8 , 12 , 15
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Cel mai mic multiplu comun al numerelor 8 ,12 şi 15 este
prdusul factorilor primi comuni, luaţi o singură dată, la puterea cea mai mică.
120 (produsul factorilor primi comuni şi necomuni , luaţi o singură dată, la puterea cea mai mare).
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cea mai mică valoare a lui x este
120
119
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