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E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_04
\ 17-Nov-2023 Bharat Arora Proof-6 Reader’s Sign _______________________ Date __________

Shizuka: You are great Doraemon!

example: Add 473 and 359.
Solution: Arrange the numbers in columns and

add step-wise starting from the ones place.

Step 1. First add the ones and H t O

regroup. 1 1

Step 2. Next add the tens and 4 7 3

regroup. + 3 5 9
8 3 2
Step 3. Now, add the hundreds.
Thus, 473 + 359 = 832

Quick Check
At which place do you think regrouping takes place in the following addition?
1. H t O 2. H t O 3. H t O

7 6 2 5 3 9 2 6 8
+ 1 6 7 + 4 5 3 + 2 8 7
9 2 9 ______ 9 9 2 ______ 5 5 5 ______

Practice Time 4C

Find the sum of the following.
1. H t O 2. H t O 3. H t O 4. H t O

6 2 4 5 1 8 2 8 5 5 6 2
+ 1 5 8 + 3 5 5 + 3 4 4 + 3 7 5

5. H t O 6. H t O 7. H t O 8. H t O

4 3 7 3 3 4 1 9 7 3 9 6
+ 2 9 3 + 4 2 7 + 7 9 4 + 2 4 2

74 Mathematics-2