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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-02
\\December 7, 2023 3:54 PM Bharat Arora P-6 Reader _________________________ Date: ___________________74

addition of 5- and 6-digit numbers with regrouping

example 4: Find the sum of: 47,844 + 54,667.

Solution: Step 1: Arrange the digits of the L tth th H t O
numbers in proper columns. 4 7 8 4 4

+ 5 4 6 6 7

Step 2: Add the ones. L tth th H t O

4 ones + 7 ones = 11 ones = 1 ten + 1 one. 1
Carry over 1 ten to the tens column after 4 7 8 4 4

writing 1 one in the ones column. + 5 4 6 6 7
1

Step 3: Add the tens. L tth th H t O
1 ten (carried over) + 4 tens + 6 tens = 1 1

11 tens = 1 hundred + 1 ten. Carry over 4 7 8 4 4
1 hundred to the hundreds column after + 5 4 6 6 7
writing 1 ten in the tens column. 1 1

Step 4: Add the hundreds.

1 hundred (carried over) + 8 hundreds + L tth th H t O
6 hundreds = 15 hundreds = 1 thousand 1 1 1
+ 5 hundreds. Carry over 1 thousand to 4 7 8 4 4
6 6 7
4
5
the thousands column after writing 5 + 5 1 1
hundred in the hundreds column.
Step 5: Add the thousands.

1 thousand (carried over) + 7 thousands + 4 L tth th H t O
1
1
1
1
thousands = 12 thousands = 1 ten thousand 4 7 8 4 4
+ 2 thousands. Carry over 1 ten thousand 5 4 6 6 7
to the ten thousands column after writing + 2 5 1 1
2 thousand in the thousands column.

Step 6: Add ten thousands. L tth th H t O
1 ten thousand (carried over) + 4 ten 1 1 1 1 1

thousands + 5 ten thousands = 10 ten 4 7 8 4 4
thousands = 1 lakh + 0 ten thousands + 5 4 6 6 7

Carry over 1 lakh to the lakhs column 0 2 5 1 1
after writing 0 ten thousand in the ten
thousands column.

34 Mathematics-4