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Question (21)

QN0018500

What is the value of 10² ÷ 10⁵?

(A) 10⁷
(B) 10⁻³
(C) 10³
(D) 10⁻⁷

Correct Answer: B

Explanation:

2 − 5 = −3.

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Question (22)

QN0018501

Which expression is equal to 0.01?

(A) 10⁻¹
(B) 10⁻²
(C) 10⁻³
(D) 10⁻⁴

Correct Answer: B

Explanation:

0.01 = 1/100 = 10⁻².

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Question (23)

QN0018502

Simplify 10⁷ × 10⁰.

(A) 10⁰
(B) 10⁷
(C) 10¹
(D) 10¹⁴

Correct Answer: B

Explanation:

10⁰ = 1.

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Question (24)

QN0018503

What is the value of 10⁻⁶?

(A) 0.000001
(B) 0.00001
(C) 0.0001
(D) 0.001

Correct Answer: A

Explanation:

10⁻⁶ = 1/1000000.

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Question (25)

QN0018504

Which power of 10 is equal to one billion (international system)?

(A) 10⁷
(B) 10⁸
(C) 10⁹
(D) 10¹⁰

Correct Answer: C

Explanation:

One billion = 10⁹.

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Question (26)

QN0018505

Simplify (10⁻²)³.

(A) 10⁻⁵
(B) 10⁻⁶
(C) 10⁶
(D) 10⁻¹

Correct Answer: B

Explanation:

(−2) × 3 = −6.

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Question (27)

QN0018506

What is the value of 10³ ÷ 10⁻²?

(A) 10¹
(B) 10⁵
(C) 10⁻⁵
(D) 10⁶

Correct Answer: B

Explanation:

3 − (−2) = 5.

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Question (28)

QN0018507

Which decimal is equal to 10⁻⁷?

(A) 0.0000001
(B) 0.000001
(C) 0.00001
(D) 0.0001

Correct Answer: A

Explanation:

10⁻⁷ = 1/10000000.

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Question (29)

QN0018508

What is the value of 10⁴ × 10⁻⁴?

(A) 0
(B) 1
(C) 10
(D) 100

Correct Answer: B

Explanation:

10⁰ = 1.

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Question (30)

QN0018509

Simplify 10⁻⁸ ÷ 10⁻³.

(A) 10⁻⁵
(B) 10⁵
(C) 10⁻¹¹
(D) 10¹¹

Correct Answer: A

Explanation:

−8 − (−3) = −5.

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