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Maths MCQ

Integers · Maharashtra Board STD 7 (MSBSHSE - Semi English Medium). 25 questions.

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25 questions · auto-graded multiple-choice test.

MCQ 21 Mark
What must be subtracted from $-1$ to get $-6?$
  • ✓
    $5$
  • B
    $-5$
  • C
    $7$
  • D
    $-7$
Answer
Correct option: A.
$5$
Let the number to be substracted be $x.$
To find the number, we have:
$-1 - x = -6$
$\therefore x = -1 + 6 = 5$
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MCQ 31 Mark
What must be subtracted from $-3$ to get $-9?$
  • A
    $-6$
  • ✓
    $12$
  • C
    $6$
  • D
    $-12$
Answer
Correct option: B.
$12$

$-3 - (-9) = -3 + 9 = 6$

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MCQ 41 Mark
$(-8) ÷ 0 = ?$
  • A
    $-8$
  • B
    $0$
  • ✓
    Not defined.
  • D
    $1$
Answer
Correct option: C.
Not defined.
Division by zero is not defined.
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MCQ 51 Mark
$(-12) \times 6 - (-12) \times 4 = ?$
  • A
    $24$
  • ✓
    $-24$
  • C
    $120$
  • D
    $-120$
Answer
Correct option: B.
$-24$

$(-12) \times 6 - (-12) \times 4$
$= (-12)(6 - 4) = -12 \times 2 = -24$

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MCQ 61 Mark
The sum of two integers is $14$. If one of them is $-8$, then the other is:
  • ✓
    $22$
  • B
    $-22$
  • C
    $6$
  • D
    $-6$
Answer
Correct option: A.
$22$

Sum $= 14$
One integer $= -8$
Second $= 14 - (-8) = 14 + 8 = 22$

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MCQ 81 Mark
The sum of two integers is $-6$. If one of them is $2,$ then the other is:
  • A
    $-4$
  • ✓
    $4$
  • C
    $8$
  • D
    $-8$
Answer
Correct option: B.
$4$

Let the other integer be a. Then, we have:
$2 + a = -6$
$\Rightarrow a = -6 - 2 = -8$
$\Rightarrow $ The other integer is $-8.$

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MCQ 91 Mark
The sum of two integers is$ -4.$ If one of them is $6,$ then the other is:
  • ✓
    $-10$
  • B
    $10$
  • C
    $2$
  • D
    $-2$
Answer
Correct option: A.
$-10$

$-4 - (-10) = -4 + 10 = 6$

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MCQ 101 Mark
The sum of two integers is $6$. If one of them is $-3$, then the other is:
  • A
    $-9$
  • ✓
    $9$
  • C
    $3$
  • D
    $-3$
Answer
Correct option: B.
$9$

$-3 + 9 = 6$

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MCQ 111 Mark
$(?) \div (-18) = -5$
  • A
    $-90$
  • ✓
    $90$
  • C
    $80$
  • D
    None of these.
Answer
Correct option: B.
$90$

$(?) \div (-18) = -5$
Let $x \div (-18) = -5$
$\Rightarrow\frac{\text{x}}{-18}=-5$
$\Rightarrow x = (-5) \times (-18) = 90$

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MCQ 121 Mark
On subtracting $-13$ from $-8$, we get:
  • A
    $-21$
  • B
    $21$
  • ✓
    $5$
  • D
    $-5$
Answer
Correct option: C.
$5$

$-8 - (-13) = -8 + 13 = 5$

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MCQ 131 Mark
On subtracting $4$ from $-4,$ we get:
  • A
    $8$
  • ✓
    $-8$
  • C
    $0$
  • D
    None of these
Answer
Correct option: B.
$-8$
$-4 - (+4) = -4 - 4 = -8$
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MCQ 171 Mark
$ 30 \times (-23) + 30 \times 14 = ?$
  • ✓
    $-270$
  • B
    $270$
  • C
    $1110$
  • D
    $-1110$
Answer
Correct option: A.
$-270$

$30 \times (-23) + 30 \times 14$
$= 30 \times (-23 + 14)$
$= 30 \times (-9)$
$= -270$

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MCQ 181 Mark
$(-27) \times (-16) + (-27) \times (-14) = ?$
  • A
    $-810$
  • ✓
    $810$
  • C
    $-54$
  • D
    $54$
Answer
Correct option: B.
$810$
$(-27) \times (-16) + (-27) \times (-14)$
$= (-27){-16 - 14}$
$= (-27) \times (-30)$
$= 810$
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MCQ 191 Mark
$0 \div (-5) = ?$
  • A
    $-5$
  • ✓
    $0$
  • C
    $1$
  • D
    Not defined.
Answer
Correct option: B.
$0$

$0 \div (-5) = 0$
$($Zero divided by any integer other than zero, is zero$)$

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MCQ 201 Mark
On subtracting 6 from $-5$, we get
  • A
    $1$
  • B
    $11$
  • ✓
    $-11$
  • D
    None of these.
Answer
Correct option: C.
$-11$
$-5 - (6) = -5 - 6 = -11$
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MCQ 211 Mark
Which of the following is a true statement?
  • A
    $-11 > -8$
  • ✓
    $-11 < -8$
  • C
    $-11$ and $-8$ cannot be compared.
  • D
    $-11 = -8$
Answer
Correct option: B.
$-11 < -8$
$-11 < -8$
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MCQ 231 Mark
$(-15) \times 8 + (-15) \times 2 = ?$
  • A
    $150$
  • ✓
    $-150$
  • C
    $90$
  • D
    $-90$
Answer
Correct option: B.
$-150$

$(-15) \times 8 + (-15) \times 2$
$= (-15){8 + 2}$
$= -15 \times 10 = -150$

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MCQ 251 Mark
The sum of two integers is $93$. If one of them is $-59,$ the other one is:
  • A
    $34$
  • B
    $-34$
  • ✓
    $152$
  • D
    $-152$
Answer
Correct option: C.
$152$

Sum of two integers $= 93$
One integer $= -59$
Second $= 93 - (-59) = 93 + 59 = 152$

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