**Decimals Class 6 Ex. 8.4**

**New Ncert Class 6, Chapter 8 Math Free Solution.**

**Exercise 8.4**

**Question 1 :- Subtract:**

**(a) ₹18.25 from ₹20.75**

**(b) 202.54 m from 250 m**

**(c) ₹5.36 from ₹8.40**

**(d) 2.051 km from 5.206 km**

**(e) 0.314 kg from 2.107 kg**

**Solution 1:-**

(a) ₹18.25 from 20.75

= 20.75 – 18.25

= 2.50

(b) 202.54 m from 250 m

= 250 m – 202.54 m

= 250.00 m – 202.54 m

= 47.46 m

(c) ₹5.36 from ₹8.40

= ₹8.40 – ₹5.36

= ₹3.04

(d) 2.051 km from 5.206 km

= 5.206 km – 2.051 km

= 3.155 km

(e) 0.314 kg from 2.107 kg

= 2.107 kg – 0.314 kg

= 1.793 kg

**Question 2 :- Find the value of:**

**(a) 9.756 – 6.28**

**(b) 21.05 – 15.27**

**(c) 18.5 – 6.79**

**(d) 11.6 – 9.847**

**Solution 2:-**

(a) 9.756 – 6.28

= 9.756 – 6.280

= 3.476

(b) 21.05 – 15.27

= 5.78

(c) 18.5 – 6.79

= 18.50 – 6.79

= 11.71

(d) 11.6 – 9.847

= 11.600 – 9.847

= 1.753

**Question 3 :- Raju bought a book for ₹35.65 rupees. He gave ₹50 to the shopkeeper. How much money did he get-back from the shopkeeper?**

**Solution 3:-**

Cost of book = ₹35.65

Money paid by him to the shopkeeper = ₹50

So, money got back by him

= ₹50 – ₹35.65

= ₹50.00 – ₹35.65

= ₹14.35

**Question 4 :- Rani had ₹18.50. She bought one ice-cream for ₹11.75. How much money does she have now?**

**Solution 4:-**

Money Rani had ₹18.50

She bought ice-cream for ₹11.75

So, Money left with Rani = ₹ 18.50 – ₹11.75 = ₹6.75

**Question 5 :- Tina had 20m 5cm long cloth. She cut 4m 50cm length of cloth from this for making curtain. How much cloth is left with her?**

**Solution 5:-**

The total length of cloth had by Tina = 20 m 5 cm = 20.05 m

The length of cloth cut by her = 4 m 50 cm = 4.50 m

So, the length of cloth left with her = 20.05 m – 4.50 m = 15.55 m

**Question 6 :- Namita travels 20km 50m every day. Out of this Namita travels 10km 200m by bus and the rest by auto. How much-distance does she travel by auto?**

**Solution 6:-**

Distance travelled by Namita daily = 20km 50m = 20.050 km

Distance travelled by her by bus = 10km 200m = 10.200 km

So, Distance travelled by her by auto = (20.050 – 10.200) km = 9.850 km

**Question 7 :- Aakash bought vegetables weighing 10kg. Out of this, 3kg 500g is onions, 2kg 75g is tomatoes and the rest is potatoes. What is the weight of the potatoes?**

**Solution 7:-**

The total weight of vegetables bought by Aakash = 10 kg

The weight of onions bought by him = 3 kg 500 g = 3.500 kg and

The weight of tomatoes bought by him = 2 kg 75 g = 2.075 kg

So, the weight of potatoes = Weight of vegetable – (weight of onions + weight of tomatoes)

= 10.000 – (3.500 + 2.075)

= 10.000 – 5.575

= 4.425 kg

**Chapter 8 Decimals Class 6 Exercise. 8.4 for Free**