ML Aggarwal Class 6 Mathematics Second Chapter Whole Numbers Exercise 2.1 Solution By Expert
(1) Write the smallest whole number. Can you write the largest whole number?
Solution: 0 is a smallest whole number.
There is no largest whole number.
(2) Write the successor of each of the following numbers:
Solution: (i) 3999 – 4000
(ii) 378915 – 378916
(iii) 5001299 = 5001300
(3) Write the predecessor of each of the following numbers:
(i) 500 = 499
(ii) 38794 = 38793
(iii) 54789011 = 54789010
(4) Write the whole number (in each of the following) whose successor is:
(i) 50795 – 50794
(ii) 720300 – 720299
(iii) 8300000 – 8299999
(5) Write the whole number (in each of the following whose predecessor is –
(i) 5347 – 5348
(ii) 72399 – 72400
(iii) 3012999 – 3013000
(6) Write next three consecutive whole numbers of the following numbers:
(i) 79 = 80, 81, 82
(ii) 598 = 599, 600, 601
(iii) 35669 = 35670, 35671, 35672
(7) Write three consecutive whole numbers occurring just before 320001
Solution: 319998, 319999, 320000
(8) (i) How many whole numbers are there between 38 and 68?
Solution: There are 68 – 38 = 30 whole numbers.
(ii) Hoe many whole numbers are there between 99 and 300?
Solution: There are (300 – 99 = 201) whole numbers.
(9) Write all whole numbers between 100 and 200 which do not change if the digits are written in reverse order.
Solution: 101, 111, 121, 131, 141, 151, 161, 171, 181, 191
(10) How many 2 digit whole numbers are there between 5 and 92?
Ans. 92 – 10 = 82
(11) How many 3 digit whole numbers are there between 72 and 407?
Solution: 407 – 100 = 307
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