
Operații cu numere reale
Authored by BURTEA MARIANA
Mathematics
3rd Grade
Used 8+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Triplul numarului natural x este:
2x
3x2
3x
x3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Se consideră expresia . Termenii asemenea sunt:
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se consideră expresia algebrică
. Valoarea numerică, a acestei expresii, pentru x=1, este egală cu:2
1
0
-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pentru a calcula ( 2x-1)(1+2x) folosim formula:
(a-b)2
Nu se poate folosi o formulă
(a+b)(a-b)
(a+b)2
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calculând (2x-3)(2x+3) obținem:
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
0
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