Page 37 - Maths Skill - 3

Addition 35

2. Find the sum of the given numbers.

(a) 988, 1232 and 4205 (b) 4744, 1831 and 2722

(c) 1763, 2182 and 1563 (d) 6241, 2222 and 1038

Properties of Addition

� Numbers can be added in any order, their sum remains the same.

For example, 2315 + 1104 = 3419 The sum is the same.

1104 + 2315 = 3419

� When we add 0 (zero) to a number or a number to 0 (zero), result is the number
itself.

For example, 1315 + 0 = 1315; 0 + 2104 = 2104

� When one is added to a number. The sum is the successor of the given number.

For example, 4056 + 1 = 4057, 2059 + 1 = 2060

� The sum of two or more numbers is always greater than the numbers being added
except when one of the number is zero.

For example, 2137 + 1022 = 3159, Here 3159 > 2137, 3159 > 1022

Exercise 3.6

Fill in the blanks.
(a) 2315 + 1214 = _________ + 2315 (b) 1350 + 0 = _________

(c) 175 + 2086 = 2086 + _________ (d) 0 + _________ = 3204

(e) _________ + 1383 = 1383 + 2562 (f) 4832 + _________ = 4832

Word Problems

Let us learn how to solve word problems on addition with the help of few examples.

Let’s Attempt

Example 1: Aman distributed 1063 toffees among his friends on his birthday. Rohan
distributed 2375 toffees on his birthday. How many toffees were distributed

in all? Th H T O
Solution: Toffees distributed by Aman = 1063 1

Toffees distributed by Rohan = 2375 1 0 6 3
Total number of toffees = 1063 + 2375 = 3438 + 2 3 7 5
3 4 3 8
Thus, 3438 toffees are distributed in all.