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

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Ahinsa School
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Quizzes Created: 1 | Total Attempts: 87
Questions: 10 | Attempts: 87  Settings  • 1.

• A.

25

• B.

13

• C.

-13

• D.

-25

C. -13
Explanation
6 + (-19) = -13

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• 2.

### (-6)(-9)

• A.

54

• B.

-54

• C.

-15

• D.

15

A. 54
Explanation
2. (-6) × (-9) = 54

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• 3.

### Is -73 = 3-7 true or false?

• A.

True

• B.

False

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

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

A. True
Explanation
Distributive property of multiplication over addition.

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• 6.

0, Zero
• 7.

### The additive inverse of (-1979) is _______

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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• 8.

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

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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• 9.

### Integers Can be

• A.

Positive Only

• B.

Negative Only

• C.

Both positive and negative

• D.

Nor positive neither negative Back to top