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Toggle## Class 6, Maths, Chapter 8, Exercise 8.1 Solutions

**Q.1. Write the following as numbers in the given table.**

**Ans:**

**Q.2. Write the following decimals in the place value table.**

**(a) 19.4 **

**(b) 0.3**

**(c) 10.6**

**(d) 205.9**

**Ans:**

**Q.3. Write each of the following as decimals :**

**(a) Seven-tenths **

**(b) Two tens and nine-tenths**

**(c) Fourteen point six **

**(d) One hundred and two ones**

**(e) Six hundred point eight**

**Ans:**

(a) Seven-tenths

= $\frac{7}{10}$ = 0.7

(b) Two tens and nine-tenths

$=2\,\times \,10\,\,+\,\,\frac{9}{10}$

= 20 + 0.9

= 20.9

(c) Fourteen point six = 14.6

(d) One hundred and two ones

= 100 + 2 x 1

= 100 + 2

= 102.0

(e) Six hundred point eight = 600.8

**Q.4. Write each of the following as decimals: **

**(a)** $\frac{5}{10}$

**(b) ****3 + ** $\frac{7}{10}$

**(c) 200 + 60 + 5 + ** $\frac{1}{10}$

**(d)**** 70 +** $\frac{8}{10}$

**(e) ** $\frac{88}{10}$

**(f) ** $4\frac{2}{10}$

**(g)** $\frac{3}{2}$

**(h) ** $\frac{2}{5}$

**(i) ** $\frac{12}{5}$

**(j) ** $3\frac{3}{5}$

**(k) ** $4\frac{1}{2}$

**Q.5. Write the following decimals as fractions. Reduce the fractions to lowest form.**

**(a) 0.6 **

**(b) 2.5 **

**(c) 1.0 **

**(d) 3.8 **

**(e) 13.7 **

**(f) 21.2 **

**(g) 6.4**

**Q.6. Express the following as cm using decimals.**

**(a) 2 mm **

**(b) 30 mm **

**(c) 116 mm **

**(d) 4 cm 2 mm **

**(e) 162 mm **

**(f) 83 mm**

**Q.7. Between which two whole numbers on the number line are the given numbers lie? Which of these whole numbers is nearer the number?**

**(a) 0.8 **

**(b) 5.1 **

**(c) 2.6 **

**(d) 6.4 **

**(e) 9.1 **

**(f) 4.9**

**Ans:**

** (a****) 0.8** lies between 0 and 1

∴ 0.8 is nearer to 1

**(b) 5.1** lies between 5 and 6

∴ 5.1 is nearer to 5

**(c) 2.6** lies between 2 and 3

∴ 2.6 is nearer to 3

**(d) 6.4** lies between 6 and 7

∴ 6.4 is nearer to 6

**(e) 9.1** lies between 9 and 10

∴ 9.1 is nearer to 9

**(f) 4.9** lies between 4 and 5

∴ 4.9 is nearer to 5

**Q.8. Show the following numbers on the number line.**

**(a) 0.2 **

**(b) 1.9 **

**(c) 1.1 **

**(d) 2.5**

**Ans:**

**Q.9. Write the decimal number represented by the points A, B, C, D on the given number line.**

**Ans:**

**(a) **Point A on the number line represents 0.8

(b) Point B on the number line represents 1+ 0.3 =1.3

(c) Point C on the number line represents 2 + 0.2 = 2.2

(d) Point D on the number line represents 2 + 0.9 = 2.9

**Q.10. (a) The length of Ramesh’s notebook is 9 cm 5 mm. What will be its length in ****cm?**

**(b) The length of a young gram plant is 65 mm. Express its length in cm.**