Students can practice TS 6th Class Maths Solutions Chapter 1 Knowing Our Numbers Ex 1.1 to get the best methods of solving problems.

## TS 6th Class Maths Solutions Chapter 1 Knowing Our Numbers Exercise 1.1

Question 1.

Which is the greatest and the smallest among the following numbers ?

(i) 15432, 15892, 15370, 15524

Answer:

All the four numbers are of 5 digits.

The digits in ten thousands place in all the given numbers are same.

The digits in thousands place are also same.

So we move to hundreds place to compare them.

The digits in hundreds place are 4, 8, 3 and 5 respectively.

∴ 3 < 4 < 5 < 8

∴ The greatest number is 15892

The smallest number is 15370

(ii) 25073, 25289, 25800, 25623

Answer:

All the four numbers are of 5 digits. The digits in ten thousands place in all the given numbers are same. The digits in thousands place are also same. So we move to hundreds place to compare them.

The digits in hundreds place are 0, 2, 8, 6 respectively.

∴ 0 < 2 < 6 < 8

The greatest number is 25800

The smallest number is 25073

(iii) 44687, 44645, 44670, 44602

Answer:

All the four numbers are of 5 digits.

The digits in ten thousands place, thousands place and hundreds place are same in all the numbers.

So we move to tens place to compare them.

The digits in tens place are 8, 4, 7, 0 respectively.

∴ 0 < 4 < 7 < 8

∴ The greatest number is 44687.

The smallest number is 44602.

(iv) 75671, 75635, 75641, 75610

Answer:

All the four numbers are of 5 digits. The digits in ten thousands place, thousands place and hundreds place are same in all the numbers. So we move to tens place to compare them. The digits in tens place are 7, 3, 4, 1 respectively.

∴ 1 < 3 < 4 < 7

∴ The greatest number is 75671 The smallest number is 75610

v) 34895, 34891, 34899, 34893

Sol. All the four numbers are of 5 digits. The digits in ten thousands place, thousands place, hundreds place and tens place are same in all the numbers. So we move to units place to compare them.

The digits in units place are 5, 1, 9, 3 respectively.

∴ 1 < 3 < 5 < 9

∴ The greatest number is 34899

The smallest number is 34891

Question 2.

Write the numbers in ascending (in-creasing) order.

(i) 375, 1475, 15951, 4713

Answer:

We can say that 15951 is the greatest number and 375 is the smallest number by counting the digits in the numbers. Regarding 1475 and 4713 it is clear that 1475 < 4713

∴ 375 < 1475 < 4713 < 15951

The ascending order is 375, 1475, 4713, 15951

(ii) 9347, 19035, 22570, 12300

Answer:

The number with four digits (i.e.,) 9347 is the smallest number because the other numbers are of five digits.

In 19035, 22570, 12300 numbers, the greatest number is 22570.

Again 12300 < 19035

∴ 9347 < 12300 < 19035 < 22570

The ascending order is 9347, 12300, 19035, 22570

Question 3.

Write the numbers in descending (decreasing) order.

(i) 1876, 89715, 45321, 89254

Answer:

1876 is the smallest number because it has four digits while the other numbers are of five digits.

The other numbers are 89715, 45321, 89254.

45321 < 89254 < 89715 (∵ 2 < 7) ∴ The descending order is 89715, 89254, 45321, 1876. (∵ 89715 > 89254 > 45321 > 1876)

(ii) 3000, 8700, 3900, 18500

Answer:

18500 is the greatest number because it has five digits while the other numbers are of four digits.

The other numbers are 3000,8700,3900

3000 < 3900 < 8700 ∴ The descending order is 18500, 8700, 3900, 3000. (∵ 18500 > 8700 > 3900 > 3000)

Question 4.

Compare the numbers by placing appropriate symbol (< or >) in the space given.

(i) 3854 ………………… 15200

Answer:

3854 < 15200 (ii) 4895 …………………. 4864 Answer: 4895 > 4864

(iii) 99454 ………………….. 99445

Answer:

99454 > 99445

(iv) 14500 ………………….. 14499

Answer:

14500 > 14499

Question 5.

Write the numbers in words :

(i) 72642

Answer:

72,642 = Seventy two thousand six hundred forty two

(ii) 55345

Answer:

55,345 = Fifty five thousand three hundred forty five

(iii) 66600

Answer:

66,600 = Sixty six thousand six hundred

(iv) 30301

Answer:

30,301 = Thirty thousand three hundred one

Question 6.

Write the numbers in figures:

(i) Forty thousand two hundred seventy.

Answer:

40,270

(ii) Fourteen thousand sixty four.

Answer:

14,064

(iii) Nine thousand seven hundred.

Answer:

9,700

(iv) Sixty thousand.

Answer:

60,000

Question 7.

Form four digit numbers with the digits 4, 0, 3, 7 and find which is the greatest and the smallest among them ?

Answer:

The digits given are 4, 0, 3, 7.

The four digit numbers formed with the digits are

4037, 4073, 4370, 4307, 4730, 4703

3047, 3074, 3470, 3407, 3704, 3740

7034, 7043, 7304, 7340, 7403, 7430

The greatest number is 7430

The smallest number is 3047

Question 8.

Write the following numbers.

(i) the smallest four digit number

Answer:

1000

(ii) the greatest four digit number

Answer:

9999

(iii) the smallest five digit number

Answer:

10000

(iv) the greatest five digit number

Answer:

99999