This property is known as _______ a + (b+ c) = (a + b) + c

Associative Property, Associative

Quiz 1 - 7th Maths - Addition, Substraction And Multiplication Of Integers

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| Written by Ahinsa School

Ahinsa School

Community Contributor

Quizzes Created: 1 | Total Attempts: 87

Questions: 10 | Attempts: 87 | Updated: Jul 20, 2023

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Questions and Answers

1.

Add : 6, (-19)
- A.
  
  25
- B.
  
  13
- C.
  
  -13
- D.
  
  -25
Correct Answer
C. -13

Explanation
6 + (-19) = -13

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2.

(-6)(-9)
- A.
  
  54
- B.
  
  -54
- C.
  
  -15
- D.
  
  15
Correct Answer
A. 54

Explanation
2. (-6) × (-9) = 54

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3.

Is -73 = 3-7 true or false?
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Multiplication is Commutative.

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4.

Is a - b = b - a true or false? (where a & b is any integer)
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Substraction is not Commutative.

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5.

Is [2(-7 + 9)] = [(2-7) + (29)] true or false?
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Distributive property of multiplication over addition.

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6.

The additive identity for integers is _______

Correct Answer
0, Zero
7.

The additive inverse of (-1979) is _______

Correct Answer
1979

Explanation
The additive inverse of a number is the number that, when added to the original number, gives a sum of zero. In this case, the additive inverse of (-1979) would be 1979, because (-1979) + 1979 = 0.

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4
8.

This property is known as _______ a + (b+ c) = (a + b) + c

Correct Answer
Associative Property, Associative

Explanation
The given property states that when adding three numbers, the grouping of the numbers does not affect the final result. This property is known as the Associative Property. It allows us to rearrange the parentheses and still get the same sum. In this case, the property is specifically referred to as the Associative Property of Addition.

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4
9.

Integers Can be
- A.
  
  Positive Only
- B.
  
  Negative Only
- C.
  
  Both positive and negative
- D.
  
  Nor positive neither negative
Correct Answer
C. Both positive and negative

Explanation
Integers can be both positive and negative because they represent whole numbers, including both the positive numbers (greater than zero) and the negative numbers (less than zero). Integers do not include fractions or decimals, but they encompass all the positive and negative whole numbers along with zero. Therefore, the answer is "Both positive and negative."

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Quiz 1 - 7th Maths - Addition, Substraction And Multiplication Of Integers

Add : 6, (-19)

(-6)(-9)

Is -73 = 3-7 true or false?

Is a - b = b - a true or false? (where a & b is any integer)

Is [2(-7 + 9)] = [(2-7) + (29)] true or false?

The additive identity for integers is _______

The additive inverse of (-1979) is _______

This property is known as _______ a + (b+ c) = (a + b) + c

Integers Can be