Page 37 - Math_Genius_V1.0_C4_Flipbook

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

Step 7: Write 1 lakh in the lakhs column. L tth th H t O

1 1 1 1 1
4 7 8 4 4
Thus, 47,844 + 54,667 = 1,02,511 + 5 4 6 6 7

1 0 2 5 1 1
example 5: Add 8,71,999 and 19,999.

Solution: L tth th H t O Think and Answer

Find the sum of:
1 1 1 1
1. 4 thousands + 3 hundreds + 12 tens +
8 7 1 9 9 9 2 ones
+ 1 9 9 9 9 2. 6 ten thousands + 2 thousands + 55
hundreds
8 9 1 9 9 8 3. 8 thousands + 13 hundreds + 11 ones

9 ones + 9 ones = 18 ones
= 1 ten and 8 ones
1 ten + 9 tens + 9 tens = 19 tens
= 1 hundred and 9 tens
1 hundred + 9 hundreds + 9 hundreds = 19 hundreds
1
= thousand and 9 hundreds
1 thousand + 1 thousand + 9 thousands = 11 thousands
= 1 ten thousand and
1 thousand
1 ten thousand + 7 ten thousands + 1 ten thousand = 9 ten thousands
8 lakhs + 0 lakhs = 8 lakhs

Thus, the required sum is 8,91,998.

Practice time 2a

1. Add the following.

(a) tth th H t O (b) L tth th H t O

7 1 2 5 3 2 5 9 2 1 2
+ 2 3 4 0 1 + 1 2 0 1 2 7

(c) L tth th H t O (d) L tth th H t O

7 5 6 2 0 0 7 1 2 6 2 5

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

Mathematics-4 35