Apskaičiuokite skaitinę reikšmę reiškinio:
x + y – z, kai x = -1,4; y = 0,47 ir z = - 30;
7kl reiškiniai
Quiz
•
Mathematics
•
7th Grade
•
Medium
Vakarė Sliesoraitytė
Used 5+ times
FREE Resource
54 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Apskaičiuokite skaitinę reikšmę reiškinio:
x + y – z, kai x = -1,4; y = 0,47 ir z = - 30;
-29,07
33,32
29,07
-32,33
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Su tam tikromis x ir y reikšmėmis reiškinio x - y reikšmė lygi -0,8. Kokios bus nurodytų reiškinių reikšmės su tomis pačiomis kintamųjų x ir y reikšmėmis:
3 * (x – y)
-0,8 *x
-0,8 * y
-0,8 * x * y
-2,4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Raskite skaitinę reiškinio reikšmę:
3|a| + 5 |b|, kai = -2, b = -1
-11
11
-1
1
4.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Jeigu stačiakampio perimetras 20 cm, viena jo kraštinė x cm, tai kokia kita kraštinė?
5.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Jeigu stačiakampio perimetras 20 cm, viena jo kraštinė x cm, tai koks jo plotas?
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
- 92
81
18
- 81
- 18
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dvigubas skaičius a
a2
a+2
2a
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