Επανάληψη

Επανάληψη

10th Grade

15 Qs

quiz-placeholder

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Επανάληψη

Επανάληψη

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Medium

Created by

Dimitris Giannousopoulos

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν α=2 και β=5, ποιο είναι το άθροισμα α+β;

6

7

8

10

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν α=2 και β=-5, τότε α∙β= ;

-7

-10

10

3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν α=2, τότε α+8= ;

10

6

12

8

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ποιο από τα παρακάτω είναι πάντα αληθές για οποιουσδήποτε αριθμούς α και β;

Αν α∙β=0, τότε α=0 ή β=0

Αν α∙β=0, τότε α=0 και β=0

Αν α+β=0, τότε α=0 ή β=0

Αν α=β, τότε α∙β=0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν x=3, τότε x+5= ;

5

7

8

8

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Υπολογίστε: -2[ -3(1−x) − (x+3) ], για x=2

4

8

12

-4

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Αν οι αριθμοί Α= -3y+4z και Β= y−2z είναι αντίθετοι, τότε ισχύει:

y=z

y=−z

y=2z

y=z

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