1. An integer can be:
2. A rational number can be represented in the form of:
3. The value of ½ × ⅗ is equal to:
4. The value of (½) ÷ (⅗) is equal to:
5. The value of ½ + ¼ is equal to:
6. The value of (5/4) – (8/3) is:
7. The associative property is applicable to:
8. The value of (-10/3) × (-15/2) × (17/19) × 0 is:
9. The additive identity of rational numbers is:
10. The multiplicative identity of rational numbers is:
11. What is the sum of ⅔ and 4/9?
12. What is the product of 2/9 and ¾?
13. What is the reciprocal of 1/9?
14. What is the value of 100 divided by 0?
15. Which of the following is commutative for rational numbers?
16. Division of rational numbers is associative.
17. What is the value of ¾ + ⅚ + 2/7?
18. Find the additive inverse of 11/7.
19. How many rational numbers are there in between ¾ and 1?
Answer: D. Countless
Explanation: We can write ¾ as 30/40 and 1 as 40/40. Hence the rational numbers between them are 31/40, 32/40, …, 39/40. Note: There are countless rational numbers between any two rational numbers.
Explanation: We can write ¾ as 30/40 and 1 as 40/40. Hence the rational numbers between them are 31/40, 32/40, …, 39/40. Note: There are countless rational numbers between any two rational numbers.
20. What should be subtracted from -⅔ to get -1?
Answer: A. ⅓
Solution: Let x be the number subtracted from -⅔. -⅔ – x = -1 -x = -1 + ⅔ -x = -⅓ x = ⅓
Solution: Let x be the number subtracted from -⅔. -⅔ – x = -1 -x = -1 + ⅔ -x = -⅓ x = ⅓