question_answer 8)

Which of the following statements are true (T) and which are false (F)? (a) Zero is the smallest natural number. (b) 400 is the predecessor of 399. (c) Zero is the smallest whole number. (d) 600 is the successor of 599. (e) All natural numbers are whole numbers. (f) All whole numbers are natural numbers. (g) The predecessor of a two digit number is never a single digit number. (h) 1 is the smallest whole number. (i) The natural number 1 has no predecessor. (j) The whole number 1 has no predecessor. (k) The whole number 13 lies between 11 and 12. (I) The whole number 0 has no predecessor. (m) The successor of a two digit number is always a two digit number.

Answer:

                (a) False, because zero is not a natural number. It is a whole number.                                                        (b) False, because predecessor of 399 is 399 ? 1 = 398. (c) True, because whole numbers start with zero (0). (d) True, because successor of 599 is 599 + 1 = 600. (e) True. (f) False, because 0 is not a natural number. (g) False, because predecessor of 10 is 10 ? 1 = 9, which is a single digit number. (h) False, because 0 is the smallest whole number. (i) True, because if we subtract 1 from 1, then we get 0 (1 ? 1 = 0), which is not a natural number. (j) False, because predecessor of 1 is 1 ? 1 = 0 and 0 is a whole number. (k) False, because 13 is greater than 12. (I) True. (m) False, because successor of two digit number 99 is 99 + 1 = 100, which is a three digit number.