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Question (11)

QN0015160

Evaluate: (6 + 10) – 2

(A) 12
(B) 13
(C) 14
(D) 16

Correct Answer: C

Explanation:

16 – 2 = 14.

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Question (12)

QN0015161

Evaluate: 6 + (10 – 2)

(A) 12
(B) 13
(C) 14
(D) 16

Correct Answer: C

Explanation:

6 + 8 = 14.

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Question (13)

QN0015162

The value of 16 – (8 – 3) is:

(A) 5
(B) 8
(C) 11
(D) 13

Correct Answer: C

Explanation:

16 – 5 = 11.

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Question (14)

QN0015163

The value of (16 – 8) – 3 is:

(A) 5
(B) 8
(C) 11
(D) 13

Correct Answer: A

Explanation:

8 – 3 = 5.

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Question (15)

QN0015164

Which pair of expressions has the same value?

(A) 16 – (8 – 3) and (16 – 8) – 3
(B) 27 – (18 + 4) and 27 + (–18 – 4)
(C) 30 – (5 – 2) and 30 – 5 – 2
(D) 50 – (20 – 10) and 50 – 20 – 10

Correct Answer: B

Explanation:

Both simplify to 27 – 18 – 4.

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Question (16)

QN0015165

The value of 27 – (18 + 4) is:

(A) 3
(B) 4
(C) 5
(D) 6

Correct Answer: C

Explanation:

27 – 22 = 5.

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Question (17)

QN0015166

Which expression has the same value as 73 – 14 + 1?

(A) 73 – (14 + 1)
(B) 73 + (–14 + 1)
(C) 73 + (14 – 1)
(D) 73 + (14 + 1)

Correct Answer: B

Explanation:

Both expressions contain the same terms.

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Question (18)

QN0015167

Which expression has the same value as 73 – 14 – 1?

(A) 73 – (14 + 1)
(B) 73 + (14 – 1)
(C) 73 + (–14 + 1)
(D) 73 – (14 – 1)

Correct Answer: A

Explanation:

Removing brackets gives 73 – 14 – 1.

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Question (19)

QN0015168

In the expression 87 – (46 + 109), the sign of 46 after removing brackets becomes:

(A) +46
(B) –46
(C) ×46
(D) ÷46

Correct Answer: B

Explanation:

A preceding minus changes all signs inside.

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Question (20)

QN0015169

In the expression 87 – (46 + 109), the sign of 109 after removing brackets becomes:

(A) +109
(B) –109
(C) ×109
(D) ÷109

Correct Answer: B

Explanation:

+109 becomes –109.

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Question (11)

Evaluate: (6 + 10) – 2

Explanation:

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Question (12)

Evaluate: 6 + (10 – 2)

Explanation:

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Question (13)

The value of 16 – (8 – 3) is:

Explanation:

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Question (14)

The value of (16 – 8) – 3 is:

Explanation:

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Question (15)

Which pair of expressions has the same value?

Explanation:

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Question (16)

The value of 27 – (18 + 4) is:

Explanation:

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Question (17)

Which expression has the same value as 73 – 14 + 1?

Explanation:

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Question (18)

Which expression has the same value as 73 – 14 – 1?

Explanation:

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Question (19)

In the expression 87 – (46 + 109), the sign of 46 after removing brackets becomes:

Explanation:

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Question (20)

In the expression 87 – (46 + 109), the sign of 109 after removing brackets becomes:

Explanation:

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