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Class 7 Exam  >  Class 7 Tests  >  Mathematics (Maths) Class 7  >  Olympiad Test: Integers - Class 7 MCQ

Olympiad Test: Integers - Class 7 MCQ


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20 Questions MCQ Test Mathematics (Maths) Class 7 - Olympiad Test: Integers

Olympiad Test: Integers for Class 7 2024 is part of Mathematics (Maths) Class 7 preparation. The Olympiad Test: Integers questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Integers MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Integers below.
Solutions of Olympiad Test: Integers questions in English are available as part of our Mathematics (Maths) Class 7 for Class 7 & Olympiad Test: Integers solutions in Hindi for Mathematics (Maths) Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Olympiad Test: Integers | 20 questions in 20 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study Mathematics (Maths) Class 7 for Class 7 Exam | Download free PDF with solutions
Olympiad Test: Integers - Question 1
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−4 × (7)  = ?

Detailed Solution for Olympiad Test: Integers - Question 1

Two 'pluses' make a plus, two 'minuses' make a plus. A plus and a minus make a minus.

−4 × (7)  = -28  [∵ (-) x (+) = (-)]

Olympiad Test: Integers - Question 2
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−45 ÷ 9 = ?

Detailed Solution for Olympiad Test: Integers - Question 2
  • To solve -45 ÷ 9, we need to divide -45 by 9.
  • When dividing a negative number by a positive number, the result is negative.
  • Now, divide the absolute values: 45 ÷ 9 = 5.
  • Since we started with a negative number, the final answer is -5.
  • Therefore, -45 ÷ 9 = -5, which corresponds to option 3.
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Olympiad Test: Integers - Question 3
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−5 × (−6) =?

Detailed Solution for Olympiad Test: Integers - Question 3

In this question, we have to multiply the integers with the same negative sign.

-5 x -6 = 30  [∵ (-) x (-) = +]

In multiplication, we have to multiply the sign of the integers also and then assign the obtained sign to the answer.
Negative sign multiplied by negative sign gives an overall positive sign.

Olympiad Test: Integers - Question 4
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Which of the following is true?
Detailed Solution for Olympiad Test: Integers - Question 4

LHS: (-8) + (-4) = -12
RHS: (-8) – (-4) = -4
⇒ -12 < -4 i.e. LHS<RHS
⇒ (- 8) + (- 4) < (- 8) – (- 4)

Thus, option C is correct.

Olympiad Test: Integers - Question 5
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The sum of two integers is -112. If one of them is -109 the other is:
Detailed Solution for Olympiad Test: Integers - Question 5

Let other number be x.
⇒ x + (-109) = -112
⇒ x = -112 + 109 = -3

Olympiad Test: Integers - Question 6
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10 × (−3) = ?
Detailed Solution for Olympiad Test: Integers - Question 6

The product of 10 × (−3) is −30. This is because the multiplication of a positive number and a negative number results in a negative number.

Olympiad Test: Integers - Question 7
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Difference between 43°C and -17°C is:
Detailed Solution for Olympiad Test: Integers - Question 7

just subtract them
 43 - (-17) = 60

Olympiad Test: Integers - Question 8
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−67 × (−1) = ?
Detailed Solution for Olympiad Test: Integers - Question 8

-67 x (-1) = 67 [∵ (-) x (-) = +]

Olympiad Test: Integers - Question 9
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A place is 45 metre above sea level and another place is 25 meter below sea level. What is the difference of level in metres between the two places?
Detailed Solution for Olympiad Test: Integers - Question 9

45 m above sea level = +45
25 m below sea level = -25
Therefore, 45 - (-25) = 70

Olympiad Test: Integers - Question 10
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−2 × (−1) = ?
Detailed Solution for Olympiad Test: Integers - Question 10

 -2 x (-1) = 2 [∵ (-) x (-) = +]

Olympiad Test: Integers - Question 11
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25 ÷ (−5) = ?
Detailed Solution for Olympiad Test: Integers - Question 11

25 ÷ -5 = - 5 [∵ (+/-) = -]

Olympiad Test: Integers - Question 12
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At Shimla, temperature was -5°C on Monday and then it dropped by 2°C on Tuesday. What was the temperature of Shimla on Tuesday?
Detailed Solution for Olympiad Test: Integers - Question 12

Temperature on Monday = -5°C
Temperature on Tuesday = Temperature on Monday - 2°C = -5°C - 2°C = -7°C

Olympiad Test: Integers - Question 13
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6 × (−15 + 10) = ______
Detailed Solution for Olympiad Test: Integers - Question 13

According to BODMAS,
6 × (−15 + 10) = 6 × (-5) = -30
[∵ -15 + 10 = -5]

Olympiad Test: Integers - Question 14
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Product of two integers is −48. If one of the integers is −6, then the other is _________.
Detailed Solution for Olympiad Test: Integers - Question 14

Here's how we find it:

  • We know that the product of two integers is -48.
  • One of the integers is -6.
  • Let the other integer be x.
  • So, -6 * x = -48
  • To find x, we divide both sides by -6:
    • x = -48 / -6
    • x = 8

Therefore, the other integer is 8.

Olympiad Test: Integers - Question 15
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Manish deposits Rs 2000 in his bank account and withdraws Rs 1000 from it, the next day. Find the balance in Manish’s account after the withdrawal.
Detailed Solution for Olympiad Test: Integers - Question 15

Manish deposits amount = 2000
Manish withdraws amount = -1000 [ writing -ve as  it is withdrawl ]
Balance of Manish's account = 2000 + (-1000) = Rs 1000

Thus option C is correct.

Olympiad Test: Integers - Question 16
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−(−2) × (3 + 5) = ________
Detailed Solution for Olympiad Test: Integers - Question 16
- First, solve the expression inside the parentheses: 3 + 5 = 8.
- Now, substitute this back into the equation: -(-2) × 8.
- The negative of -2 is 2, so we have: 2 × 8.
- Finally, calculate 2 × 8 = 16.
- Therefore, the answer is 16.
Olympiad Test: Integers - Question 17
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Which of the following statements is wrong?
Detailed Solution for Olympiad Test: Integers - Question 17

When a positive integer and a negative integer are added, we may either get a negative integer or positive integer.
Example:  
5 + (-2) = 3
2 + (-5) = -3

Olympiad Test: Integers - Question 18
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(−12 - 3) ÷ (− 6 + 3) = _________
Detailed Solution for Olympiad Test: Integers - Question 18

(−12 - 3) = -15
(− 6 + 3) = -3
⇒ (−12 - 3) ÷ (− 6 + 3) = (-15) ÷ (-3) = 5

Olympiad Test: Integers - Question 19
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If a = 20, b = 40 and c = 80 then a x b + a x c must be equal to
Detailed Solution for Olympiad Test: Integers - Question 19

a = 20, b = 40, c = 80

According to BODMAS,
a x b + a x c = 20 x 40 + 20 x 80 = 800 + 1600 = 2400

Olympiad Test: Integers - Question 20
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The product of - 140 and + 8 is
Detailed Solution for Olympiad Test: Integers - Question 20

 -140 x 8 = -1120

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