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Question (31)

QN0015577

Evaluate 3 × [8 + (12 – 5)].

(A) 45
(B) 21
(C) 39
(D) 30

Correct Answer: A

Explanation:

(12 – 5) = 7, 8 + 7 = 15, 15 × 3 = 45.

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Question (32)

QN0015578

Find the value of 90 – (25 + 15) + 10.

(A) 50
(B) 55
(C) 60
(D) 65

Correct Answer: C

Explanation:

90 – 40 + 10 = 60.

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Question (33)

QN0015579

Evaluate 6 × 6 – 18 ÷ 3.

(A) 24
(B) 30
(C) 42
(D) 12

Correct Answer: B

Explanation:

36 – 6 = 30.

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Question (34)

QN0015580

A student buys 5 notebooks at ₹18 each and 2 pens at ₹12 each. Total expenditure is:

(A) ₹114
(B) ₹126
(C) ₹90
(D) ₹102

Correct Answer: A

Explanation:

5 × 18 + 2 × 12 = 90 + 24 = ₹114.

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Question (35)

QN0015581

Which statement about brackets is correct?

(A) Brackets are ignored.
(B) Operations inside brackets are done first.
(C) Brackets are solved last.
(D) Brackets only contain addition.

Correct Answer: B

Explanation:

Brackets have the highest priority in BODMAS.

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Question (36)

QN0015582

Evaluate 7 + 5 × (9 – 7).

(A) 24
(B) 14
(C) 17
(D) 20

Correct Answer: C

Explanation:

7 + 5 × 2 = 17.

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Question (37)

QN0015583

Which expression correctly models “three groups of the sum of 8 and 2”?

(A) 3 × 8 + 2
(B) 3 + 8 + 2
(C) 3 × (8 + 2)
(D) (3 × 8) + (3 × 2 × 2)

Correct Answer: C

Explanation:

The sum 8 + 2 is repeated three times.

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Question (38)

QN0015584

Evaluate 3 × (8 + 2).

(A) 24
(B) 10
(C) 30
(D) 18

Correct Answer: C

Explanation:

3 × 10 = 30.

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Question (39)

QN0015585

Why is the order of operations important in arithmetic expressions?

(A) To make numbers larger
(B) To ensure everyone gets the same value
(C) To avoid multiplication
(D) To remove brackets

Correct Answer: B

Explanation:

A fixed order gives a unique answer.

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Question (40)

QN0015586

A farmer packs 12 baskets with 8 mangoes each and then adds 20 extra mangoes. Which arithmetic expression represents the total number of mangoes?

(A) 12 + 8 + 20
(B) 12 × 8 + 20
(C) (12 + 8) × 20
(D) 12 × (8 + 20)

Correct Answer: B

Explanation:

Total mangoes = 12 × 8 + 20.

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Question (31)

Evaluate 3 × [8 + (12 – 5)].

Explanation:

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Question (32)

Find the value of 90 – (25 + 15) + 10.

Explanation:

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Question (33)

Evaluate 6 × 6 – 18 ÷ 3.

Explanation:

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Question (34)

A student buys 5 notebooks at ₹18 each and 2 pens at ₹12 each. Total expenditure is:

Explanation:

Link:

Question (35)

Which statement about brackets is correct?

Explanation:

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Question (36)

Evaluate 7 + 5 × (9 – 7).

Explanation:

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Question (37)

Which expression correctly models “three groups of the sum of 8 and 2”?

Explanation:

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Question (38)

Evaluate 3 × (8 + 2).

Explanation:

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Question (39)

Why is the order of operations important in arithmetic expressions?

Explanation:

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Question (40)

A farmer packs 12 baskets with 8 mangoes each and then adds 20 extra mangoes. Which arithmetic expression represents the total number of mangoes?

Explanation:

Link:

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