
M8-Súčin a podiel výrazov
Presentation
•
Mathematics
•
6th - 8th Grade
•
Hard
Daniela Bačová
Used 3+ times
FREE Resource
2 Slides • 15 Questions
1
Multiple Choice
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
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
3
Multiple Choice
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
4
Multiple Choice
Aká je hodnota výrazu 2x - y + xy
pre x=2 a y = 4?
6
8
24
0
5
Multiple Choice
Opačný výraz k výrazu -2a + 3b - ab je
2a + 3b + ab
2a - 3b + ab
2a - 3b + ba
-2a - 3b + ba
6
Multiple Choice
- (7x+6y-2) =
-7x-6y+2
7x-6y-2
-7x+6y+2
-7x-6y-2
7
Multiple Choice
(2x+5y) + (-5x +6y) =
3x + 11y
-3x +y
- 3x + 11y
3x - 11y
8
Multiple Choice
(4x+5) - (3x + 4y -8)
x - 4y + 13
-x + 4y - 13
7x - 4y - 3
7x +4y - 3
9
Multiple Choice
3x - ( x +6y + 4) =
2x + 6y + 4
2x - 6y - 4
4x + 6y + 4
4x - 6y - 4
10
Násobenie výrazu nenulovým číslom:
vynásobíme ním každého jedného člena:
3.(2 + 5n) = 3.2 + 3.5n = 6 + 15n
Súčin výrazov
11
Multiple Choice
3 (8a - 1) =
24 + 3a - 1
24a - 1
24a - 3
24 + a - 3
12
Multiple Choice
10(9 - a) =
90 - a
90 - 10a
90 + a
90 + 10a
13
Multiple Choice
-2(3c + d) =
-6c - 2 + d
-6c + 2d
6c - 2d
-6c - 2d
14
Multiple Choice
21(8a − 1) = 4a −21
PRAVDA
LOŽ
15
Výraz s premennou vydelíme tak, že číslom vydelíme každého člena výrazu:
(15x - 24y + 18) : 3 =
15x : 3 - 24y : 3 + 18 : 3 =
5x - 8y + 6
Podiel výrazov
16
Multiple Choice
(24 + 16a) : 8 =
4 + 2a
3 + 2a
24 : 8 + 16a
3 + 2 + a
17
Multiple Choice
(12s - 10) : (-2) =
-6s + 5
6s + 5
-6s - 5
-6 + s + 5
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)
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