Lygčių sistemos KD-9
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Edita Balinskiene
Used 13+ times
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Išspręskite lygčių sistemą keitimo būdu.
y =3 ; x = 2
y = 1 , x = -2
y = -2 , x = -2
y = 2, x = 3
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Lygčių sistemos sprendiniai yra
x + y = 3
x - y = 7
x = 5, y = 2
x = 5, y = - 2
x = 2, y = 1
x = - 5, y = - 2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Skaičių A ir B skirtumas lygus 23. Jei skaičių A padvigubintume, o B sumažintume 5 vienetais, tai gautume lygius skaičius. Raskite skaičių A
2
-28
0
20
-2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
60
63
33
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Triženklis skaičius baigiasi skaitmeniu 1. Jei tą skaitmenį perkeltume į skaičiaus pradžią, tai gautasis skaičius būtų 90 mažesnis už pradinį. Raskite tą triženklį skaičių.
211
121
112
212
111
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Konkurso prizams buvo nupirkti keli šokolado plytelių po 4 eurus ir kelios picos po 5 eurus. Už visą pirkinį buvo sumokėta 60 eurų. Kiek šokolado plytelių buvo nupirkta?
3
6
4
5
2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Testą sudaro 20 uždavinių. Už kiekvieną teisingai išspręstą uždavinį skiriami 8 taškai, už kiekvieną klaidingą sprendimą atimami 5 taškai, o už neišspręstą uždavinį skiriama 0 taškų. Kiek uždavinių mokinys išsprendė teisingai, jei iš viso jis surinko 13 taškų?
4
6
10
12
8
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