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Question (1)

QN0030413

Which of the following statements about integers is correct?

(A) Every negative integer is greater than zero.
(B) Zero is neither positive nor negative.
(C) Zero is the greatest integer.
(D) Every positive integer is smaller than zero.

Correct Answer: B

Explanation:

Zero separates positive and negative integers on the number line.

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Question (2)

QN0030414

Evaluate (–18) + 27 – 15.

(A) –6
(B) –4
(C) 6
(D) 12

Correct Answer: A

Explanation:

(–18) + 27 = 9 and 9 – 15 = –6.

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Question (3)

QN0030415

Which pair of integers has a product equal to –48?

(A) –6 and –8
(B) 6 and 8
(C) –6 and 8
(D) –12 and –4

Correct Answer: C

Explanation:

The product of one positive and one negative integer is negative.

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Question (4)

QN0030416

A temperature is –9°C in the morning. It rises by 14°C during the day and falls by 6°C at night. What is the final temperature?

(A) –1°C
(B) 1°C
(C) –11°C
(D) 11°C

Correct Answer: A

Explanation:

–9 + 14 – 6 = –1.

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Question (5)

QN0030417

Which expression correctly represents "subtracting –11 from –7"?

(A) (–7) – 11
(B) (–7) – (–11)
(C) 11 – 7
(D) (–11) – (–7)

Correct Answer: B

Explanation:

"Subtracting –11 from –7" is written as (–7) – (–11).

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Question (6)

QN0030418

Evaluate 36 ÷ (–4) + (–5) × 2.

(A) –19
(B) 1
(C) 19
(D) –9

Correct Answer: A

Explanation:

36 ÷ (–4) = –9, (–5) × 2 = –10 and –9 + (–10) = –19.

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Question (7)

QN0030419

Which of the following statements is always true?

(A) The product of two negative integers is negative.
(B) The sum of two positive integers is always negative.
(C) The product of two negative integers is positive.
(D) The sum of a positive and a negative integer is always zero.

Correct Answer: C

Explanation:

Multiplying two negative integers always gives a positive integer.

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Question (8)

QN0030420

A magic grid has a magic sum of 8. Two numbers in a row are –4 and 15. What is the third number?

(A) –3
(B) –2
(C) –1
(D) 1

Correct Answer: A

Explanation:

–4 + 15 = 11. Therefore, the missing number is –3.

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Question (9)

QN0030421

Evaluate [(–8) × (–3)] – (18 ÷ 3).

(A) 18
(B) 30
(C) 24
(D) 12

Correct Answer: A

Explanation:

(–8) × (–3) = 24, 18 ÷ 3 = 6 and 24 – 6 = 18.

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Question (10)

QN0030422

A diver is 28 m below sea level. He rises 19 m and then dives 7 m. What is his final position?

(A) –16 m
(B) 16 m
(C) –2 m
(D) 2 m

Correct Answer: A

Explanation:

–28 + 19 – 7 = –16 m.

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Question (1)

Which of the following statements about integers is correct?

Explanation:

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Question (2)

Evaluate (–18) + 27 – 15.

Explanation:

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Question (3)

Which pair of integers has a product equal to –48?

Explanation:

Link:

Question (4)

A temperature is –9°C in the morning. It rises by 14°C during the day and falls by 6°C at night. What is the final temperature?

Explanation:

Link:

Question (5)

Which expression correctly represents "subtracting –11 from –7"?

Explanation:

Link:

Question (6)

Evaluate 36 ÷ (–4) + (–5) × 2.

Explanation:

Link:

Question (7)

Which of the following statements is always true?

Explanation:

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Question (8)

A magic grid has a magic sum of 8. Two numbers in a row are –4 and 15. What is the third number?

Explanation:

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Question (9)

Evaluate [(–8) × (–3)] – (18 ÷ 3).

Explanation:

Link:

Question (10)

A diver is 28 m below sea level. He rises 19 m and then dives 7 m. What is his final position?

Explanation:

Link:

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