Výrazy s premennou

Quiz
•
Mathematics
•
7th - 9th Grade
•
Hard
Lucia Kallová
Used 7+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Janka má 14 rokov, jej brat je o b rokov starší. Koľko rokov budú mať spolu o 3 roky?
34 + b
17 + 3b
17 + (b + 3)
14 + (b + 3)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Peter si od septembra každý mesiac odkladá s eur do pokladničky. Koľko bude mať € v pokladničke na konci školského roka?
10s
12s
s + 12
s + 365
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Samko vypočíta denne 3s + 4 príkladov, Maťko 2m - 3 príkladov. Kto vypočíta viac, ak Samko si za s dosadí 2 a Maťko si za m dosadí 6?
Samko
Maťko
rovnako
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nela, Ela a Hela sa dohodli, že keď Nela urobí n brušákov, Ela urobí o 2e viac ako Nela a Hela o 4 menej ako Ela. Koľko urobí brušákov Hela?
n +2e - 4h
n + 2 - 4
2e - 4
n + 2e - 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aká je hodnota výrazu 2x - y + xy
pre x=2 a y = 4?
6
8
24
0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aká je hodnota výrazu nelej, ak samohlásky majú hodnotu 4 a spoluhlásky 1?
11
8
16
čoooo?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Opačný výraz k výrazu -2a + 3b - ab je
2a + 3b + ab
2a - 3b + ab
2a - 3b +
-2a - 3b +
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Je pravda, že mn + 3m - 4n pre m = 1 vieme zapísať ako 4m - 4n?
áno
nie
neviem
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