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example 3. The total weight of three friends, Panda, Koala and Penguin, is 58 kg. Penguin’s
weight is 27 kg 250 g and Koala’s weight is 8 kg 550 g. What is Panda’s weight?
Solution. Total weight of the three friends = 58 kg

Penguin’s weight = 27 kg 250 g

Koala’s weight = 8 kg 550 g

Penguin and Koala’s total weight = 27 kg 250 g + 8 kg 550 g

= 35 kg 800 g

So, Panda’s weight = 58 kg – 35 kg 800 g

= 22 kg 200 g

Thus, Panda’s weight is 22 kg 200 g.
example 4. A leopard and a wolf were weighed on a scale. The leopard weighed

60725 g. The wolf weighed 36 kg 375 g less than the leopard. Find the weight of the
wolf.

Solution. Leopard’s weight = 60725 g = 60000 g + 725 g

= (60000 ÷ 1000) kg + 725 g

= 60 kg 725 g

Difference in the weights of the leopard and the wolf = 36 kg 375 g

Wolf’s weight = 60 kg 725 g – 36 kg 375 g

= 24 kg 350 g

Thus, the wolf’s weight is 24 kg 350 g.

Exercise 9F

1. Find the sum.
a. kg g b. kg g c. kg g

300 000 243 550 500 540
+ 287 204 + 178 004 + 239 261

2. Write in the vertical form and add the following:

a. 48 kg 948 g and 13 kg 666 g b. 26 kg 430 g and 27 kg 570 g
c. 45 kg 585 g and 48 kg 894 g d. 360 g 870 mg and 140 g 550 mg

160 Mathematics 4