Sinta menulis ekspresi aljabar:
3x + 4x. Ia menyatakan bahwa hasilnya adalah 7x.
Sifat operasi apa yang digunakan Sinta?
Asesmen Sumatif UKIN

Quiz
•
Mathematics
•
7th Grade
•
Hard
Dimiani Dimiani
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sifat distributif
Sifat komutatif
Sifat asosiatif
Sifat identitas
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ibu membeli 3 kantong berisi masing-masing (2x + 5) buah apel.
Tuliskan bentuk aljabar untuk total apel yang dibeli.
6x + 5
2x + 15
2x + 5 + 3
3(2x + 5) = 6x + 15
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ali mengerjakan:
4(x + 2) + 3x.
Penyederhanaan yang benar adalah...
4x + 8 + 3x = 7x + 8
4x + 3x + 2 = 7x + 2
x + 2 + 3x = 4x + 2
4x + 3 + 3x = 7x + 3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan langkah siswa berikut:
5(x + 3) = 5x + 3.
Apakah langkah ini benar?
Ya, karena 5 dikalikan ke x
Ya, karena 3 tidak perlu dikalikan
Tidak, karena 3 juga harus dikalikan dengan 5
Tidak, karena hasilnya seharusnya 5x + 6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sederhanakan:
2(3x + 4) + 5(x - 2)
11x + 8
8x + 2
6x + 4x + 2
10x + 2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mana dari pernyataan berikut yang menunjukkan penggunaan sifat distributif?
3x + 5x = 8x
4(x + 2) = 4x + 8
(2x + 3) + 4x = 6x + 3
x + 0 = x
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dina membantu ayahnya mengatur barang. Setiap kotak berisi 2x + 3 buku. Ia menyusun 4 kotak dan kemudian menambahkan 5 buku tambahan. Ekspresi aljabarnya adalah...
A. 2x + 3 + 5
B. 4 × 2x + 3 + 5
C. 4(2x + 3 + 5)
D. 4(2x + 3) + 5
Kunci: D
2x + 3 + 5
4 × 2x + 3 + 5
4(2x + 3 + 5)
4(2x + 3) + 5
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