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Q : 4    Rani had Rs . She bought one ice-cream for Rs .  How much money does she have now?

Total Money Rani had = Rs 18.50 The money she spent on ice-cream = 11.75 The Remaining money Rani have = Rs 18.50 - Rs 11.75                                                       = Rs 6.75 Hence Rani has 6.75 Rs now.

Q : 3    Raju bought a book for Rs . He gave Rs 50 to the shopkeeper. How much money did he get back from the shopkeeper?

Total money Raju gave to shopkeeper = Rs 50 The price of the book = Rs 35.65 Money shopkeeper will return Raju = Rs 50.00 - Rs 35.65                                                         = Rs 14.35 Hence Raju got 14.35 Rs from the shopkeeper.

Q : 2    Find the value of :

(a)

(b)

(c)

(d)

As we know, subtraction in decimal works exactly like normal subtraction, we just have to maintain the place of decimal. So (a)               (b)                         (c)                         (d)

Q : 1    Subtract :

(a) Rs   from Rs

(b) m from 250 m

(c) Rs   from Rs

(d) km from km

(e) kg from kg

As we know, subtraction in decimal works exactly like normal subtraction, we just have to maintain the place of decimal. So (a) Rs   from Rs                 Rs (b)  m from 250 m\            m  (c)Rs   from Rs           Rs (d )  km from km           km  (e)  kg from kg                          kg

Q : 4    Subtract from

As we know, subtraction in decimal works exactly like normal subtraction, we just have to maintain the place of decimal. So

Q : 3    Subtract from

As we know, subtraction in decimal works exactly like normal subtraction, we just have to maintain the place of decimal. So

Subtract from

As we know, subtraction in decimal works exactly like normal subtraction, we just have to maintain the place of decimal. So

Q : 1    Subtract   from

As we know, subtraction in decimal works exactly like normal subtraction, we just have to maintain the place of decimal. So

Q : 3     Radhika’s mother gave her Rs   and her father gave her Rs , find the total amount given to Radhika by the parents.

The amount Radhika got from mother = Rs The amount Radhika got from father = Rs  Total amount Radhika have = Rs      Rs                                              =  Rs  Hence the total amount of money Radhika got from her parents is Rs 26.30.

Q : 2    Rashid spent Rs   for Maths book and Rs for Science book. Find the total amount spent by Rashid.

Amount spend on maths book =  Rs Amount spend on science book =  Rs Total amount spend = Rs    Rs                                  =   Rs   Hence the total amount spends by Rashid is Rs 68.35.

Q : 1    Find the sum in each of the following :

(a)

(b)

(c)

(d)

(e)

(f)

As we know that the decimal addition is exactly like normal addition and we don't change the position of decimal in the number. So, (a)                                                 (b)                                            (c)                                        (d)                                                              (e)                          (f)              ...

Find

(iv)

As we know that the decimal addition is exactly like normal addition and we don't change the position of decimal in the number. So,

Find

(iii)

As we know that the decimal addition is exactly like normal addition and we don't change the position of decimal in the number. So,                   .

Find

(ii)

As we know that the decimal addition is exactly like normal addition and we don't change the position of decimal in the number. So,                 Hence,

Find

(i)

As we know that the decimal addition is exactly like normal addition and we don't change the position of decimal in the number. So,               Hence

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

Total weight of the vegetables = 10 kg weight of onion = 3 kg 500 g = 3.5 kg  weight of tomato = 2 kg 75 g = 2.075 kg  Total weight of onion and potato = 3.5 kg + 2.075 kg                                                      = 5.575 kg So, The rest weight of potato = 10 kg - 5.575 kg                                                 = 4.425 kg Hence, the weight of the potato is 4.425 kg.

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

Total distance travelled by Namita = 20 km 50 m = 20.05 km The distance travelled by bus = 10 km 200 m = 10.20 km The remaining distance which is traveled by auto = 20.05 km - 10.20 km                                                                                 = 9.850 km. Hence the distance travelled by Namita in auto is 9.850 km.

Q: 5    Tina had 20 m 5 cm long cloth. She cuts 4 m 50 cm length of cloth from this for making a curtain. How much cloth is left with her?

Length of cloth initially = 20 m 5 cm = 20.05 m Length of cloth Tina cuts = 4 m 50 cm = 4.50 m The length of remaining cloth = 20.05 m - 4.50 m                                                =  15.55 m                                                = 15 m 55 cm  Hence the length of remaining cloth Tina have is 15 m 55 cm.

Q : 7    Ravi purchased 5 kg 400 g rice, 2 kg 20 g sugar and 10 kg 850g flour. Find the total weight of his purchases.

amount of rice purchased by Ravi = 5 kg 400 g. amount of sugar purchased by Ravi = 2 kg 20 g. amount of flour purchased by Ravi = 10 kg 850 g. As we know. For adding two numbers their unit must be the same. So,                                                         Also,                                                         And,                                                      ...

Q: 6    Sunita travelled 15 km 268 m by bus, 7 km 7 m by car and 500 m on foot in order to reach her school. How far is her school from her residence?

The distance travelled by bus = 15 km 268 m The distance travelled by car = 7 km 7 m  The distance travelled by foot = 500 m  As we know. For adding two numbers their unit must be the same. So,                                                                 Also                                                   And,               So, The total distance Sunita traveled = 15.268 km + 7.007 km...
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