1. The Value of 5 ÷ (–1) does not lie between (a) 0 and – 10 (b) 0 and 10 (c) –4 and –15 (d) –6 and 6 2. Which of the following is the multiplicative identity for an integer a? (a) a (b) 1 (c) 0 (d) –1 3. Which of the following does not represent an integer? (a) 0 ÷ (–7) (b) 20 ÷ (–4) (c) (–9) ÷ 3 (d) (–12)÷ 5 4. For a non-zero integer a, which of the following is not defined? (a) a ÷ 0 (b) 0 ÷ a (c) a÷1 (d) 1÷a 5. If a and b are two integers, then which of the following may not be an integer? (a) a+b (b) a–b (c) a X b (d) a ÷ b 6. (–1) + (–1) + (–1) + (–1) + .......... 500 times = (a) 500 (b) 1 (c) –1 (d) – 500 7. The sum of two integers is 10. If one of them is negative, then other has to be (a) negative (b) positive (c) May be positive or negative (d) none of these 8. If x = (–10) + (–10) + .... 15 times and y = (–2) X (–2) X (–2) X(–2)X(–2) then x – y = (a) 118 (b) – 118 (c) – 182 (d) 182 9. The number of integers between (–10) and 3 is (a) 11 (b) 13 (c) 12 (d) 14 10. The set of integers is not closed under (a) Addition (b) Subtraction (c) Multiplication (d) Division Section–B (2 marks each) 11. Find the value : 242 X (–95) + 242 X (–4) – 242 12. Calculate : 1 – 2 + 3 – 4 + 5 – 6 + ..... + 179 – 180 13. Sum of two integers is 48. If one of them is –25, find the other. 14. Simplify : (–400) + 781 + (–1400) + (–81) + 300 15. Write two integers whose product is smaller than both the integers.​