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\ 07-Nov-2024 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

Chapter assessment
A. Choose the correct option.

1. The number of integers lying between –2 and 2 is
(a) 1 (b) 2 (c) 3 (d) 0

2. The number of whole numbers lying between –6 and 6 is
(a) 10 (b) 6 (c) 4 (d) 5
3. Which of the following shows the maximum rise in temperature?
(a) 0°C to 11°C (b) –3°C to 9°C (c) –14°C to –7°C (d) –6°C to 0°C

4. When 18 is subtracted from –58, we get ............... .
(a) 20 (b) –20 (c) 76 (d) –76
5. | – 8 – 2 | + | 17 – 6 | = ............... .

(a) 20 (b) 21 (c) –21 (d) 22
6. ............... – 2446 = –8910
(a) 6464 (b) 5454 (c) –6464 (d) –5454

7. Amulya and Amar visited two places A and B respectively in Kashmir and recorded the minimum
temperatures on a particular day as –4°C at A and –1°C at B. Which of the following statements is
true?
(a) A is cooler than B.

(b) B is cooler than A
(c) There is a difference of 2°C in the temperature
(d) The temperature at A is 4°C higher than that at B.

8. −25 − (−4) − 75 −12 + 6 = ............... .
(a) 100 (b) 105 (c) 103 (d) –102
9. One integer is greater than the other by 6. If one number is −20, then the other number is ............. .

(a) −26 (b) −14 (c) −20 (d) None of these
B. Assertion and Reason Type Questions.
In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R).
Choose the correct option.
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

(b) Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of
Assertion (A).

(c) Assertion (A) is true but Reason (R) is false.
(d) Assertion (A) is false but Reason (R) is true.
1. Assertion (A): –1 is the largest negative integer.
Reason (R): –1 is closest to ‘0’ among other negative numbers on a number line.
2. Assertion (A): The value of –5 –(–10) is –15 on a number line.
Reason (R): To subtract an integer from another integer, add the additive inverse of the integer
that is being subtracted to the other integer.

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