Page 1 - Lesson Note 3
P. 1
Subject – Mathematics
Chapter 2 – OPERATION ON LARGE NUMBERS
Sub-topic-3: WORD PROBLEMS ON ADDITION AND SUBTRACTION
WORD PROBLEMS ON ADDITION:
Important key words used in word problems of addition:
Sum
total
in all
altogether.
Example -1: There are 6785134 men, 4563123 women, 1342575 children in a city.
What is the total population of that city.
Solution:
Step-1: Number of men in a city =6785134
Step-2: Number of women in a city =4563123
Step-3: Number of children in a city=1342575
Step-4: Total population in that city= 6785134+4563123+1342575 (We will add here
because total population has been asked)
1 1 1 1 1
TL L T.th TH H T O
6 7 8 5 1 3 4
4 5 6 3 1 2 3
1 3 4 2 5 7 5
12 6 9 0 8 3 2
Hence, the total population of the city is 1,26,90,832.
Example-2: Find the number 7654 more than 387654.
Solution:
