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Question (31)

QN0018670

In the decimal system, the ones place corresponds to:

(A) 10¹
(B) 10²
(C) 10⁰
(D) 10³

Correct Answer: C

Explanation:

10⁰ = 1.

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Question (32)

QN0018671

Which number is represented by 5×10⁴ + 8×10² + 3×10¹ + 7?

(A) 50,837
(B) 58,307
(C) 50,387
(D) 58,037

Correct Answer: A

Explanation:

50000 + 800 + 30 + 7 = 50837.

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Question (33)

QN0018672

The digit 7 in 17,543 represents:

(A) 7
(B) 70
(C) 700
(D) 7000

Correct Answer: D

Explanation:

7 is in the thousands place.

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Question (34)

QN0018673

Which of the following correctly defines place value?

(A) The face value of a digit
(B) The value of a digit based on its position in a number
(C) The number of digits in a numeral
(D) The symbol used for counting

Correct Answer: B

Explanation:

Place value depends on position.

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Question (35)

QN0018674

In the number 45,670, the digit 6 represents:

(A) 6
(B) 60
(C) 600
(D) 6000

Correct Answer: C

Explanation:

6 is in the hundreds place.

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Question (36)

QN0018675

Which number is represented by 9×10⁵ + 4×10³ + 2×10¹ + 8?

(A) 904,028
(B) 940,028
(C) 904,208
(D) 900,428

Correct Answer: A

Explanation:

900000 + 4000 + 20 + 8 = 904028.

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Question (37)

QN0018676

Why is zero important in place value representation?

(A) It increases the number of digits.
(B) It acts as a placeholder for empty positions.
(C) It changes the base.
(D) It removes place value.

Correct Answer: B

Explanation:

Zero keeps place values correct.

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Question (38)

QN0018677

Which number has 5 in the hundred-thousands place?

(A) 543,210
(B) 354,210
(C) 435,210
(D) 345,210

Correct Answer: A

Explanation:

5 represents 500000.

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Question (39)

QN0018678

What is the value of 10⁶?

(A) 10000
(B) 100000
(C) 1000000
(D) 10000000

Correct Answer: C

Explanation:

10⁶ = 1,000,000.

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Question (40)

QN0018679

Which statement best explains the advantage of place value representation?

(A) Every number needs a new symbol.
(B) Large numbers can be represented efficiently using a limited set of digits.
(C) Digits always have fixed values.
(D) Zero is unnecessary.

Correct Answer: B

Explanation:

Place value allows efficient representation of large numbers.

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Question (31)

In the decimal system, the ones place corresponds to:

Explanation:

Link:

Question (32)

Which number is represented by 5×10⁴ + 8×10² + 3×10¹ + 7?

Explanation:

Link:

Question (33)

The digit 7 in 17,543 represents:

Explanation:

Link:

Question (34)

Which of the following correctly defines place value?

Explanation:

Link:

Question (35)

In the number 45,670, the digit 6 represents:

Explanation:

Link:

Question (36)

Which number is represented by 9×10⁵ + 4×10³ + 2×10¹ + 8?

Explanation:

Link:

Question (37)

Why is zero important in place value representation?

Explanation:

Link:

Question (38)

Which number has 5 in the hundred-thousands place?

Explanation:

Link:

Question (39)

What is the value of 10⁶?

Explanation:

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Question (40)

Which statement best explains the advantage of place value representation?

Explanation:

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