Page 31 - Maths Skill - 3

3 3 Addition
Addition

Learning Outcomes

� Addition � Addition of more than two Numbers � Estimating the Sum
� Addition of 3-digit Numbers � Properties of Addition
� Addition of 4-digit Numbers � Adding 10, 100 and 1000

Boot-Up
Listen! Have patience!
The cricket match has been started. The batsmen We have scored We have to score
are scoring high to win. 120 runs. 80 runs more.

Total number of runs scored is 120 + 80 = ______ runs.

“Addition means putting
together two or more H T O Addend
numbers. The total of two + 1 2 0
8 0
or more numbers is called Sum
their sum.”

Hurry! If these numbers are not added quickly, they
will pop!

1 3 2 2 2 6 5 3
+ 2 8 + 6 3 + 4 8 + 0 4

Addition

Addition means putting together two or more numbers.

When two or more numbers are added, each of the numbers to be added is known as
addend and the result obtained after addition is called the sum.

Addition of 3-digit Numbers Fact-o-meter
To add 3-digit numbers, we arrange the digits The sum of two or more numbers
in columns of hundreds, tens and ones. We is always greater than the

first add the ones, then the tens followed by the numbers being added, except
when one of the numbers is zero.
addition of hundreds.