Page 106 - Maths Class 04

b. 35 cm + 22 cm = _________ cm

c. 4 m 20 cm + 5 m 35 cm = ________ m ________ cm

2. Subtract the following.

a. 56 m – 15 m = _____ m b. 74 m – 26 m = _____ m

c. 28 cm – 23 cm = _____ cm d. 13 m – 12 m = _____ m
e. 68 m 42 cm – 19 m 21 cm = _____ m _____ cm

f. 86 m 19 cm – 20 m 12 cm = _____ m _____ cm

Word Problems

Example : Maria purchased 24 m 25 cm rope and Nancy purchased 17 m 15 cm

rope. What is the total length of rope both of them purchased ?

Solution : Length of rope purchased by Maria = 24 m 25 cm

Length of rope purchased by Nancy = 17 m 15 cm

Total length of rope purchased by them 24 m 25 cm

= 24 m 25 cm + 17 m 15 cm + 17 m 15 cm
41 m 40 cm
\The total length of rope is 41 m 40 cm.

Example : Marry is 1 m 15 cm tall. Her friend Larry is 1 m 30 cm tall. Who is

taller and by how much ?

Solution : The height of Marry = 1 m 15 cm
1 m 30 cm
The height of Larry = 1 m 30 cm
– 1 m 15 cm

Difference between their heights 15 cm

= 1 m 30 cm – 1 m 15 cm

\Larry is taller by 15 cm

Practice - 7.3
Practice - 7.3
Practice - 7.3
Practice - 7.3
1. Aaryan bought 9 m 75 cm of cloth. He used 2 m 30 cm from it. How much cloth
is left ?

2. A water pipe under Buckingham Palace is 59 m long. A water pipe under the
White House is 36 m long. What is the total length of water pipes ?

Mathematics-4 106