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By observing the number line, state which of the following statements is not true.(a) B is greater than – 10 (b) A is greater than 0 (c) B is greater than A (d) B is smaller than 0 Q6. Find the out the odd one out of the four options given below: (a) (– 2 , 24) (b) (– 3 , 10) (c) (– 4 , 12) (d) (– 6 , 8)Q7. 5 16 ÷92 is equal to: (a) 316 (b) 127 (c) 5 127 (d) 3127Q8. Which of the following is positive? (a) −87 (b) 19−13 (c) −3−4 (d) −2113Q9. Which of the following does not represent an integer? (a) 0 ÷ (– 2) (b) 20 ÷ (– 4) (c) (– 9) ÷ 3 (d) (– 12) ÷ 5 Q10. The standard form of −4860is: (a) 4860 (b) −6048 (c) −45 (d) −4−5SECTION-B (3 x 6 = 18)Q11. In her Science class, Jyoti learned that the atomic weight of Helium is 4.0030; of Hydrogen is 1.0080; and of Oxygen is 16.0000. Find the difference in the atomic weights of: (i) Oxygen and Hydrogen (ii) Oxygen and Helium (iii) Helium and HydrogenQ12. Find the product using suitable properties: (i) 13 x (– 25) x (– 4) x (– 10) (ii) 61 x (– 45) + (– 61) x 55 |
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Answer» Q - 1. By observing the number line, STATE which of the following STATEMENTS is not true. The correct option is C ( B is greater than A) Q - 2. Find the out the odd one out of the four options given below: The correct option is b (-3,10) because 3 is a odd number. Q - 3. 5 + 16 ÷ 92 is equal to: The correct option is b (1/27). Q - 4. Which of the following is positive The correct option is c (-3,-4) because minus minus will be plus. Q - 5. Which of the following does not REPRESENT an integer? The correct option is a {0 ÷ (– 2)}. Q - 6. The standard form of −48/60 The correct option is c (-4/5) |
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