NCERT Solutions for Class 6 Maths Exercise 8.4

NCERT Solutions for Class 6 Maths Exercise 8.4 book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 6 Maths chapter wise NCERT solution for Maths Book all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

NCERT solutions for Maths Decimals Download as PDF

NCERT Solutions for Class 6 Maths Decimals

Class –VI Mathematics

(Ex. 8.4)

Question 1.Express as rupees using decimals:

(a) 5 paise

(b) 75 paise

(c) 20 paise

(d) 50 rupees 90 paise

(e) 725 paise

Answer:

(a) {tex}\because {/tex} 1 paisa = Rs.{tex}\frac{1}{{100}}{/tex}

(b) {tex}\because {/tex} 1 paisa = Rs.{tex}\frac{1}{{100}}{/tex}

{tex}\therefore {/tex} 5 paise = {tex}\frac{1}{{100}}{/tex} x 5 = Rs. 0.05

{tex}\therefore {/tex} 75 paise = {tex}\frac{1}{{100}}{/tex} x 5 = Rs. 0.75

(c) {tex}\because {/tex} 1 paisa = Rs.{tex}\frac{1}{{100}}{/tex}

(d) {tex}\because {/tex} 1 paisa = Rs.{tex}\frac{1}{{100}}{/tex}

{tex}\therefore {/tex} 20 paise = {tex}\frac{1}{{100}}{/tex} x 5 = Rs. 0.05

{tex}\therefore {/tex}Rs. 50 + 90 paise = 50 +{tex}\frac{1}{{100}}{/tex} x 90 = Rs. 50.90

(e) {tex}\because {/tex} 1 paisa = Rs.{tex}\frac{1}{{100}}{/tex}

{tex}\therefore {/tex} 725 paise = {tex}\frac{1}{{100}}{/tex} x 725 {tex} = \frac{{725}}{{100}}{/tex} = Rs. 7.25

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Question 2.Express as meters using decimals:

(a) 15 cm

(b) 6 cm

(c) 2 m 45 cm

(d) 9 m 7 cm

(e) 419 cm

Answer:

(a) {tex}\because {/tex} 1 cm = {tex}\frac{1}{{100}}{/tex} m

(b) {tex}\because {/tex} 1 cm = {tex}\frac{1}{{100}}{/tex} m

{tex}\therefore {/tex} 15 cm = {tex}\frac{1}{{100}}{/tex} x 15 = 0.15 m

{tex}\therefore {/tex} 6 cm = {tex}\frac{1}{{100}}{/tex} x 6 = 0.06 m

(c) {tex}\because {/tex} 1 cm = {tex}\frac{1}{{100}}{/tex} m

(d) {tex}\because {/tex} 1 cm = {tex}\frac{1}{{100}}{/tex} m

{tex}\therefore {/tex} 2 m 45 cm = 2 + {tex}\frac{1}{{100}}{/tex} x 45 = 2.45 m

{tex}\therefore {/tex} 9 m 7 cm = 9 +{tex}\frac{1}{{100}}{/tex} x 7 = 9.07 m

(e) {tex}\because {/tex} 1 cm = {tex}\frac{1}{{100}}{/tex} m

{tex}\therefore {/tex} 419 cm = {tex}\frac{1}{{100}}{/tex} x 419 = {tex}\frac{{419}}{{100}} = {/tex} 4.19 m

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NCERT Solutions for Class 6 Maths Exercise 8.4

Question 3.Express as cm using decimals:

(a) 5 mm

(b) 60 mm

(c) 164 mm

(d) 9 cm 8 mm

(e) 93 mm

Answer:

(a) {tex}\because {/tex} 1 mm = {tex}\frac{1}{{10}}{/tex} cm

(b) {tex}\because {/tex} 1 mm = {tex}\frac{1}{{10}}{/tex} cm

{tex}\therefore {/tex} 5 mm = {tex}\frac{1}{{10}}{/tex} x 5 = 0.5 cm

{tex}\therefore {/tex} 60 mm = {tex}\frac{1}{{10}}{/tex} x 60 = 6 cm

(c) {tex}\because {/tex} 1 mm = {tex}\frac{1}{{10}}{/tex} cm

(d) {tex}\because {/tex} 1 mm = {tex}\frac{1}{{10}}{/tex} cm

{tex}\therefore {/tex} 164 mm = {tex}\frac{1}{{10}}{/tex} x 164 = 16.4 cm

{tex}\therefore {/tex} 9 cm 8 mm = 9 + {tex}\frac{1}{{10}}{/tex} x 8 = 9 + 0.8 = 9.8 cm

(e) {tex}\because {/tex} 1 mm = {tex}\frac{1}{{10}}{/tex} cm

{tex}\therefore {/tex} 93 mm = {tex}\frac{1}{{10}}{/tex} x 93 = 9.3 cm

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Question 4.Express as km using decimals:

(a) 8 m

(b) 88 m

(c) 8888 m

(d) 70 km 5 m

Answer:

(a) {tex}\because {/tex} 1 m = {tex}\frac{1}{{1000}}{/tex} km

(b) {tex}\because {/tex} 1 m = {tex}\frac{1}{{1000}}{/tex} km

{tex}\therefore {/tex} 8 m = {tex}\frac{1}{{1000}}{/tex} x 8 = 0.008 km

{tex}\therefore {/tex} 88 m = {tex}\frac{1}{{1000}}{/tex} x 88 = 0.088 km

(c) {tex}\because {/tex} 1 m = {tex}\frac{1}{{1000}}{/tex} km

(d) {tex}\because {/tex} 1 m = {tex}\frac{1}{{1000}}{/tex} km

{tex}\therefore {/tex} 8888 m = {tex}\frac{1}{{1000}}{/tex} x 8888 = 8.888 km

{tex}\therefore {/tex} 70 km 5 m = 70 + {tex}\frac{1}{{1000}}{/tex} x 5 = 70.005 km

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NCERT Solutions for Class 6 Maths Exercise 8.4

Question 5.Express as kg using decimals:

(a) 2 g

(b) 100 g

(c) 3750 g

(d) 5 kg 8 g

(e) 26 kg 50 g

Answer:

(a) {tex}\because {/tex} 1 g = {tex}\frac{1}{{1000}}{/tex} kg

(b) {tex}\because {/tex} 1 g = {tex}\frac{1}{{1000}}{/tex} kg

{tex}\therefore {/tex} 2 g = {tex}\frac{1}{{1000}}{/tex} x 2 = 0.002 kg

{tex}\therefore {/tex} 100 g = {tex}\frac{1}{{1000}}{/tex} x 100 = 0.1 kg

(c) {tex}\because {/tex} 1 g = {tex}\frac{1}{{1000}}{/tex} kg

(d) {tex}\because {/tex} 1 g = {tex}\frac{1}{{1000}}{/tex} kg

{tex}\therefore {/tex} 3750 g = {tex}\frac{1}{{1000}}{/tex} x 3750 = 3.750 kg {tex}\therefore {/tex} 5 kg 8 g = 5 +{tex}\frac{1}{{1000}}{/tex} x 8 = 5.008 kg

(e) {tex}\because {/tex} 1 g = {tex}\frac{1}{{1000}}{/tex} kg

{tex}\therefore {/tex} 26 kg 50 g = 26 +{tex}\frac{1}{{1000}}{/tex} x 50 = 26.050 kg

NCERT Solutions for Class 6 Maths Exercise 8.4

NCERT Solutions Class 6 Maths PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 6 Maths includes text book solutions from Class 6 Maths Book . NCERT Solutions for CBSE Class 6 Maths have total 14 chapters. 6 Maths NCERT Solutions in PDF for free Download on our website. Ncert Maths class 6 solutions PDF and Maths ncert class 6 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.

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