Page 66 - Maths Class 02

5. 6. 7. 8.
H T O H T O H T O H T O

8 6 4 6 4 3 6 4 2 9 2 4

+ 7 3 + 9 2 + 8 3 + 4 4

Adding 3–Digit Numbers with 3-Digit Numbers

Without Regrouping H T O

Example : Add 632 and 132. 6 3 2

Step 1 : Arrange them in columns. + 1 3 2

Step 2 : After arranging the digits in column,

add the ones column digit.
H T O

6 3 2
H T O + 1 3 2

Step 3 : Then, add the tens
6 3 2 4
column digit.
+ 1 3 2

6 4

H T O
Step 4 : After adding tens place column, add
6 3 2
hundreds column digits.
+ 1 3 2
We will get the sum of these addends.

7 6 4
The sum of 632 and 132 is 764.

With Regrouping

Example : Add 529 and 433.

Step 1 : Place one number above the other so H T O

that the hundreds, tens and ones 5 2 9

places are lined up. + 4 3 3

Mathematics-2 66