# Soal Online Materi Bilangan Bulat

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Kerjakan soal berikut dengan benar, dengan mengisikan nama dan kelas pada "Name"  dengan nama kalian, berikut kelasnya. Contoh : Dani Ahmad kelas 7 F, berikutnya klik start.

• 1.

### Berikut ini yang merupakan bilangan bulat adalah ... .

• A.

0, 1, 2, 3, ....

• B.

...-3, -2, -1, 0

• C.

1, 2, 3, 4 ....

• D.

...-3, -2, -1, 0, 1, 2, 3 ...

D. ...-3, -2, -1, 0, 1, 2, 3 ...
Explanation
The answer is "...-3, -2, -1, 0, 1, 2, 3 ..." because it includes both positive and negative integers, starting from -3 and continuing in ascending order. This sequence represents all the integers, as it includes zero and extends infinitely in both directions.

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• 2.

### Pernyataan yang benar adalah ....

• A.

> 5

• B.

-1 > -3

• C.

0 < -2

• D.

-6 > -1

B. -1 > -3
Explanation
The correct answer is -1 > -3 because when comparing two numbers, the greater number is placed on the left side of the inequality symbol. In this case, -1 is greater than -3, so the statement -1 > -3 is true.

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• 3.

### Suhu pada suatu ruangan 28 C, karena suatu sebab ruangan mengalami penurunan suhu secara drastis yaitu 35 C, maka suhu ruangan tersebut menjadi ....

• A.

-4 C

• B.

5 C

• C.

-6 C

• D.

-7 C

D. -7 C
Explanation
The initial temperature of the room is 28°C. Due to a drastic decrease in temperature of 35°C, the room's temperature will be lowered by 35°C. Therefore, the final temperature of the room will be 28°C - 35°C = -7°C.

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• 4.

### Susunan bilangan dari yang kecil ke yang besar adalah ... .

• A.

-20, - 12, 10

• B.

-70, -80, -100

• C.

0, -5, 2

• D.

2, -4, -8

A. -20, - 12, 10
Explanation
The given sequence is arranged in ascending order, from smallest to largest. The numbers -20, -12, and 10 are arranged in this order.

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• 5.

### Susunan bilangan berikut terurut dari yang besar ke yang kecil, kecuali ... .

• A.

8, 6, 3

• B.

2, -4, -6

• C.

-3, -2 , -1

• D.

-3, -4, -5

C. -3, -2 , -1
Explanation
The given sequence of numbers is arranged in descending order except for the sequence -3, -2, -1. This sequence is not arranged in descending order because -3 is greater than -2 and -1.

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• 6.

### Penulisan yang tepat dari  7 C di bawah nol adalah ... .

• A.

7 C

• B.

+7 C

• C.

-7 C

• D.

+ 7 C

C. -7 C
Explanation
The correct answer is -7 C. This is because the question asks for the correct writing of "7 C" below zero. The minus sign before the 7 indicates that the temperature is below zero, making it negative. Therefore, the correct way to write "7 C" below zero is "-7 C".

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• 7.

### Nilai 5 + (-9) = ... .

• A.

-14

• B.

-4

• C.

4

• D.

14

B. -4
Explanation
The given expression is a sum of two numbers, 5 and -9. When we add a positive number and a negative number, we subtract the absolute value of the smaller number from the absolute value of the larger number and keep the sign of the larger number. In this case, the absolute value of 5 is larger than the absolute value of -9. Therefore, we subtract 9 from 5 and keep the sign of 5, which is positive. So, the result is -4.

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• 8.

### Nilai -8 + (-12) = ... .

• A.

-20

• B.

-4

• C.

4

• D.

20

A. -20
Explanation
The given equation is asking for the sum of -8 and -12. When adding two negative numbers, we add their absolute values and keep the negative sign. The absolute value of -8 is 8, and the absolute value of -12 is 12. Adding 8 and 12 gives us 20, and since both numbers are negative, the final answer is -20.

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• 9.

### Hasil pangkat tiga dari bilangan negatif adalah ... .

• A.

Bilangan postif

• B.

Bilangan negatif

• C.

Nol

• D.

Tidak didefinisikan

B. Bilangan negatif
Explanation
The question asks for the result of raising a negative number to the power of three. When a negative number is raised to an odd power, like three, the result is always negative. Therefore, the correct answer is "Bilangan negatif" (Negative number).

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• 10.

### Nilai dari 100 : (-5) = ... .

• A.

20

• B.

5

• C.

-5

• D.

-20

D. -20
Explanation
The correct answer is -20 because when you subtract -5 from 100, you are essentially adding 5 to 100. So, 100 + 5 equals 105. However, since we are subtracting -5, the answer becomes 105 - 5, which equals 100. Therefore, the correct answer is -20.

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