# Sifat Operasi Bilangan Bulat (Rumadi, S.Pd)

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Quizzes Created: 3 | Total Attempts: 2,784
Questions: 11 | Attempts: 196

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• 1.

### -6 + 5 = -1 merupakan sifat ...... pada penjumlahan

Explanation
The correct answer is "Sifat tertutup" or "tertutup" because when we add -6 and 5, we get -1, which is also an integer. This shows that the set of integers is closed under addition, meaning that when we add two integers, the result is always an integer.

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• 2.

### 6 - 5 = 1 , merupakan sifat .... pada pengurangan

Explanation
The correct answer is "Sifat tertutup" or "Closed property" in English. This property states that when subtracting two numbers, the result will always be a number within the same set of numbers. In this case, subtracting 5 from 6 gives the result of 1, which is still a whole number. Therefore, the subtraction operation is closed under the set of whole numbers.

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• 3.

### 4 x (-5) = -20 , merupakan sifat ........... pada perkalian

Explanation
The given equation 4 x (-5) = -20 demonstrates the property of closure in multiplication. This property states that when two numbers are multiplied, the result will always be another number within the same set of numbers. In this case, multiplying 4 and -5 gives us -20, which is still within the set of integers. Therefore, the equation exemplifies the property of closure in multiplication.

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• 4.

### 5 + (-6) = (-6) + 5, merupakan sifat ...... pada penjumlahan

Explanation
The correct answer is "Sifat komutatif" or "komutatif" which means "commutative property" in English. This property states that the order of the numbers being added does not affect the result. In this case, whether we add 5 and -6 or -6 and 5, the result will be the same, which is -1.

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• 5.

### 5 x (-6) = -6 x 5 , merupakan sifat ............. pada perkalian

Explanation
The given correct answer is "Sifat komutatif" or "komutatif". This is because the equation 5 x (-6) = -6 x 5 demonstrates the commutative property of multiplication, which states that changing the order of the numbers being multiplied does not change the result. In this case, multiplying 5 by -6 gives the same result as multiplying -6 by 5.

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• 6.

### (73 + 98) + 27 = 98 + (73 + 27) , merupakan sifat ........ pada penjumlahan

Explanation
The given equation (73 + 98) + 27 = 98 + (73 + 27) demonstrates the associative property of addition. This property states that the grouping of numbers being added does not affect the sum. In this case, whether we add 73 and 98 first and then add 27 or if we add 98 and 27 first and then add 73, the result will be the same. Therefore, the correct answer is "asosiatif" or "associative" in English.

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• 7.

### (317 x 125) x 8 = 317 x ( 125 x 8 ), merupakan sifat ....... pada perkalian

Explanation
The given equation (317 x 125) x 8 = 317 x (125 x 8) demonstrates the property of associativity in multiplication. This property states that the grouping of numbers being multiplied does not affect the result. In this case, whether we multiply 317 and 125 first or 125 and 8 first, the final product will be the same.

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• 8.

### Y ( y + 5 ) = y(y) + y(5) , merupakan sifat............. perkalian terhadap penjumlahan

Explanation
The given equation y ( y + 5 ) = y(y) + y(5) demonstrates the property of distributivity in multiplication over addition. This property states that when multiplying a number by the sum of two other numbers, we can distribute the multiplication to each term inside the parentheses. In this case, we can distribute the y to both y and 5, resulting in y^2 + 5y on the left side of the equation, and y^2 + 5y on the right side. Therefore, the equation exemplifies the distributive property in multiplication over addition.

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• 9.

### A ( a2 - 7 ) = a(a2) - a(7) , merupakan sifat ............ perkalian terhadap pengurangan

Explanation
The given equation a ( a2 - 7 ) = a(a2) - a(7) shows the distributive property of multiplication over subtraction. This property states that when a number is multiplied by the difference of two other numbers, it is the same as multiplying the number by each of the two numbers separately and then subtracting the results. In this case, a is being multiplied by (a2 - 7), and the equation shows that it is equal to a multiplied by a2 minus a multiplied by 7, which demonstrates the distributive property.

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• 10.

### 0 + ( -4 ) = -4 , 0 merupakan unsur ..........

Explanation
The given equation states that when you add 0 and -4, the result is -4. This shows that 0 acts as the identity element in this addition operation. The identity element in an operation is the element that, when combined with any other element, does not change the value of that element. In this case, adding 0 to any element will not change the value of that element, making 0 the identity element. Therefore, the correct answer is "Identitas,identitas."

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• 11.

### 1 x (-5) = -5 , 1 merupakan unsur ...........

Explanation
The correct answer is "Identitas, identitas". The equation 1 x (-5) = -5 indicates that when the number 1 is multiplied by -5, the result is -5. In this context, "identitas" refers to the property of a number that when it is multiplied by 1, it remains unchanged. Therefore, the number 1 is the identity element in multiplication.

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