Page 28 - Touchpad Mathematics_Ver1.0_C4

E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_02\Chap_02
\ 10-Nov-2025 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

1. Find the total number of visitors who visited each section on weekdays and
over the weekend.

a. Fiction b. Language c. Children’s d. Non-fiction e. Stationery
Books
528 840 710 712 425

+ 1020 + 1245 + 1540 + 984 + 1628

2. Find the difference in the number of visitors at each section on weekdays

and over the weekend.
a. Fiction b. Language c. Children’s d. Non-fiction e. Stationery

Books

1020 1245 1540 984 1628
– 528 – 840 – 710 – 712 – 425

AdditioN

Addition is finding the total value of two or more numbers. H T O

• The numbers that are added are called addends. 4 0 2
• The result of addition is called the sum. + 3 4 3 Addends

Properties of Addition 7 4 5 Sum

1. If we change the order of numbers (addends), the sum does not change.

a. H T O H T O b. Th H T O Th H T O
2 1 4 3 2 5 3 4 3 1 4 0 2

+ 3 2 5 + 2 1 4 + 1 4 0 2 + 3 4 3

5 3 9 5 3 9 1 7 4 5 1 7 4 5

Same Same

2. If we add zero (0) to any number, the sum is the number itself.

a. H T O b. Th H T O c. H T O

3 4 5 1 4 3 5 0
+ 0 Same + 0 Same + 6 5 3

3 4 5 1 4 3 5 6 5 3 Same

26 Mathematics 4