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Question (31)

QN0030283

Which expression has the greatest value?

(A) (–9) × (–2)
(B) 9 × (–2)
(C) (–9) × 2
(D) (–6) × 3

Correct Answer: A

Explanation:

(–9) × (–2) = 18, which is greater than the other products.

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Question (32)

QN0030284

Evaluate (–16) × (5 + (–8)).

(A) –48
(B) 48
(C) –128
(D) 128

Correct Answer: B

Explanation:

5 + (–8) = –3 and (–16) × (–3) = 48.

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Question (33)

QN0030285

Which statement about multiplication by (–1) is correct?

(A) It doubles the integer.
(B) It gives the additive inverse of the integer.
(C) It always gives a positive integer.
(D) It always gives zero.

Correct Answer: B

Explanation:

Multiplying an integer by –1 changes its sign.

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Question (34)

QN0030286

Find the value of (–32) × (–6).

(A) –192
(B) 192
(C) –38
(D) 38

Correct Answer: B

Explanation:

(–32) × (–6) = 192.

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Question (35)

QN0030287

A penalty of 3 points is given for each rule violation. If a player commits 14 violations, the total score due to penalties is

(A) 42
(B) –42
(C) –17
(D) 17

Correct Answer: B

Explanation:

Penalty = 14 × (–3) = –42 points.

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Question (36)

QN0030288

Evaluate (–5) × (–2) × (–3) × 4.

(A) –120
(B) 120
(C) –14
(D) 14

Correct Answer: A

Explanation:

Three negative factors give a negative product. Magnitude = 5 × 2 × 3 × 4 = 120.

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Question (37)

QN0030289

Which of the following is true?

(A) The magnitude of the product changes when only the signs change.
(B) The magnitude of the product depends only on the magnitudes of the integers.
(C) The product is always positive.
(D) The product is always negative.

Correct Answer: B

Explanation:

Changing only the signs changes the sign of the product, not its magnitude.

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Question (38)

QN0030290

Find the value of 24 × (–15).

(A) –360
(B) 360
(C) –39
(D) 39

Correct Answer: A

Explanation:

24 × (–15) = –360.

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Question (39)

QN0030291

Evaluate (–9) × (12 + (–7)).

(A) –45
(B) 45
(C) –171
(D) 171

Correct Answer: A

Explanation:

12 + (–7) = 5 and (–9) × 5 = –45.

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Question (40)

QN0030292

A diver descends 8 metres every minute. If downward movement is represented by a negative integer, what is the diver's displacement after 9 minutes?

(A) 72 m
(B) –72 m
(C) –17 m
(D) 17 m

Correct Answer: B

Explanation:

Displacement = 9 × (–8) = –72 m.

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Question (31)

Which expression has the greatest value?

Explanation:

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Question (32)

Evaluate (–16) × (5 + (–8)).

Explanation:

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Question (33)

Which statement about multiplication by (–1) is correct?

Explanation:

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Question (34)

Find the value of (–32) × (–6).

Explanation:

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Question (35)

A penalty of 3 points is given for each rule violation. If a player commits 14 violations, the total score due to penalties is

Explanation:

Link:

Question (36)

Evaluate (–5) × (–2) × (–3) × 4.

Explanation:

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Question (37)

Which of the following is true?

Explanation:

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Question (38)

Find the value of 24 × (–15).

Explanation:

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Question (39)

Evaluate (–9) × (12 + (–7)).

Explanation:

Link:

Question (40)

A diver descends 8 metres every minute. If downward movement is represented by a negative integer, what is the diver's displacement after 9 minutes?

Explanation:

Link:

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