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Question (1)

QN0030333

What is the defining property of a magic grid?

(A) All rows have different sums.
(B) All rows, columns and diagonals have the same sum.
(C) Only the diagonals have the same sum.
(D) Only the rows have the same sum.

Correct Answer: B

Explanation:

A magic grid has the same sum in every row, column and diagonal.

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Question (2)

QN0030334

In a magic grid, the common total of every row, column and diagonal is called the

(A) Grid value
(B) Magic number
(C) Magic sum
(D) Integer sum

Correct Answer: C

Explanation:

The common total is called the magic sum.

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Question (3)

QN0030335

A magic grid has the first row as 4, –2 and 3. What is the magic sum?

(A) 3
(B) 4
(C) 5
(D) 6

Correct Answer: C

Explanation:

4 + (–2) + 3 = 5.

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Question (4)

QN0030336

In a magic grid, one row contains the integers 7, –5 and –1. The magic sum is

(A) 0
(B) 1
(C) 2
(D) 3

Correct Answer: B

Explanation:

7 + (–5) + (–1) = 1.

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Question (5)

QN0030337

In a magic grid, the magic sum is 9. Two numbers in a row are 6 and –2. The third number is

(A) 3
(B) 4
(C) 5
(D) 7

Correct Answer: C

Explanation:

6 + (–2) = 4. Therefore, the missing number is 5.

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Question (6)

QN0030338

In a magic grid, the magic sum is –4. Two numbers in a column are –6 and 5. The missing number is

(A) –3
(B) –4
(C) –5
(D) –6

Correct Answer: A

Explanation:

–6 + 5 = –1. Therefore, the missing number is –3.

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Question (7)

QN0030339

A diagonal of a magic grid contains –8, 6 and 5. What is the magic sum?

(A) 2
(B) 3
(C) 4
(D) 5

Correct Answer: B

Explanation:

–8 + 6 + 5 = 3.

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Question (8)

QN0030340

In a magic grid, the magic sum is 12. Two numbers in a diagonal are 9 and –4. The third number is

(A) 5
(B) 6
(C) 7
(D) 8

Correct Answer: C

Explanation:

9 + (–4) = 5. Therefore, the missing number is 7.

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Question (9)

QN0030341

Which statement is always true for a magic grid?

(A) Every entry is positive.
(B) Every entry is negative.
(C) Every row has the same total.
(D) Every row contains consecutive integers.

Correct Answer: C

Explanation:

Every row, column and diagonal have the same total.

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Question (10)

QN0030342

If the magic sum of a grid is 0 and two numbers in a row are –9 and 4, the third number is

(A) –5
(B) 5
(C) –13
(D) 13

Correct Answer: B

Explanation:

–9 + 4 = –5. Therefore, the missing number is 5.

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Question (1)

What is the defining property of a magic grid?

Explanation:

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Question (2)

In a magic grid, the common total of every row, column and diagonal is called the

Explanation:

Link:

Question (3)

A magic grid has the first row as 4, –2 and 3. What is the magic sum?

Explanation:

Link:

Question (4)

In a magic grid, one row contains the integers 7, –5 and –1. The magic sum is

Explanation:

Link:

Question (5)

In a magic grid, the magic sum is 9. Two numbers in a row are 6 and –2. The third number is

Explanation:

Link:

Question (6)

In a magic grid, the magic sum is –4. Two numbers in a column are –6 and 5. The missing number is

Explanation:

Link:

Question (7)

A diagonal of a magic grid contains –8, 6 and 5. What is the magic sum?

Explanation:

Link:

Question (8)

In a magic grid, the magic sum is 12. Two numbers in a diagonal are 9 and –4. The third number is

Explanation:

Link:

Question (9)

Which statement is always true for a magic grid?

Explanation:

Link:

Question (10)

If the magic sum of a grid is 0 and two numbers in a row are –9 and 4, the third number is

Explanation:

Link:

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