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Question (1)

QN0015150

In the expression 28 + (15 – 7), which part should be evaluated first?

(A) 28 + 15
(B) 15 – 7
(C) 28 – 7
(D) Entire expression together

Correct Answer: B

Explanation:

Expressions inside brackets are evaluated first.

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Question (2)

QN0015151

Which statement about brackets in expressions is correct?

(A) Terms outside brackets are always evaluated first
(B) Brackets help avoid confusion while evaluating expressions
(C) Brackets have no effect on value
(D) Brackets can only contain addition

Correct Answer: B

Explanation:

Brackets indicate the correct order of evaluation.

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Question (3)

QN0015152

The value of 24 + (6 – 4) is:

(A) 22
(B) 24
(C) 26
(D) 28

Correct Answer: C

Explanation:

24 + (6 – 4) = 24 + 2 = 26.

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Question (4)

QN0015153

The expression 38 + (9 – 4) is equal to:

(A) 38 + 9 + 4
(B) 38 – 9 – 4
(C) 38 + 9 – 4
(D) 38 – 9 + 4

Correct Answer: C

Explanation:

A bracket preceded by + can be removed without changing signs.

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Question (5)

QN0015154

The value of 24 – (6 + 4) is:

(A) 12
(B) 14
(C) 16
(D) 18

Correct Answer: B

Explanation:

24 – 10 = 14.

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Question (6)

QN0015155

Which expression is equivalent to 27 – (8 + 3)?

(A) 27 + 8 + 3
(B) 27 – 8 + 3
(C) 27 + 8 – 3
(D) 27 – 8 – 3

Correct Answer: D

Explanation:

Removing brackets after a minus changes all signs inside.

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Question (7)

QN0015156

Removing the brackets from 14 + (12 + 10) gives:

(A) 14 + 12 + 10
(B) 14 – 12 + 10
(C) 14 + 12 – 10
(D) 14 – 12 – 10

Correct Answer: A

Explanation:

Signs remain unchanged.

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Question (8)

QN0015157

Removing the brackets from 14 – (12 + 10) gives:

(A) 14 + 12 + 10
(B) 14 – 12 + 10
(C) 14 – 12 – 10
(D) 14 + 12 – 10

Correct Answer: C

Explanation:

Both signs inside the bracket change.

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Question (9)

QN0015158

Which expression is equivalent to 14 – (12 – 10)?

(A) 14 – 12 – 10
(B) 14 + 12 – 10
(C) 14 – 12 + 10
(D) 14 + 12 + 10

Correct Answer: C

Explanation:

The sign of –10 changes to +10.

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Question (10)

QN0015159

The value of 14 – (12 – 10) is:

(A) 8
(B) 10
(C) 12
(D) 14

Correct Answer: C

Explanation:

14 – 2 = 12.

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Question (1)

In the expression 28 + (15 – 7), which part should be evaluated first?

Explanation:

Link:

Question (2)

Which statement about brackets in expressions is correct?

Explanation:

Link:

Question (3)

The value of 24 + (6 – 4) is:

Explanation:

Link:

Question (4)

The expression 38 + (9 – 4) is equal to:

Explanation:

Link:

Question (5)

The value of 24 – (6 + 4) is:

Explanation:

Link:

Question (6)

Which expression is equivalent to 27 – (8 + 3)?

Explanation:

Link:

Question (7)

Removing the brackets from 14 + (12 + 10) gives:

Explanation:

Link:

Question (8)

Removing the brackets from 14 – (12 + 10) gives:

Explanation:

Link:

Question (9)

Which expression is equivalent to 14 – (12 – 10)?

Explanation:

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Question (10)

The value of 14 – (12 – 10) is:

Explanation:

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