Page 57 - Math_Genius_V1.0_C3_Flipbook

E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_03
\ 12-Sep-2024 Surender Prajapati Proof-5 Reader’s Sign _______________________ Date __________

Titu: The distance between Bhopal to Jammu by road is around 1492 km and by flight
is 1117 km.

Sonu: It means we will travel 375 km less when we travel by flight.
Let us learn how Sonu finds the distance by flight is 375 km lesser than the distance by

road.
For this, subtract 1117 by 1492 by using the following steps:

Step 1: Write the smaller number below the bigger number in columns.
Since, 7 ones < 2 ones, so, we regroup the tens into ones. th H t O
9 tens 2 ones = 8 tens 12 ones. 8 12

Now, subtract the ones. 1 4 9 2
12 ones – 7 ones = 5 ones – 1 1 1 7

Write 5 in the ones column. 5
Step 2: Subtract the Step 3: Subtract the Step 4: Subtract the

tens. hundreds. thousands.
8 tens – 1 ten = 4 hundreds – 1 hundred = 3 1 thousand – 1 thousand = 0
7 tens hundreds. thousands

Write 7 in the Write 3 in the hundreds Write 0 in the thousands
tens column. column. column.

th H t O th H t O th H t O

8 12 8 12 8 12
1 4 9 2 1 4 9 2 1 4 9 2
– 1 1 1 7 – 1 1 1 7 – 1 1 1 7
7 5 3 7 5 0 3 7 5
Thus, 1492 – 1117 = 375.

Example 2: Subtract 5189 from 9258.
Solution: Write the numbers in correct place value columns and subtract using the
following steps: th H t O
Step 1: Subtract the ones. Since, 8 < 9, so regroup the 14

tens into ones to subtract ones. 1 4 18
9
5 tens 8 ones = 4 tens 18 ones – 5 2 5 8
9
1
8
Now, 18 ones – 9 ones = 9 ones 4 0 6 9
Step 2: Subtract the tens. Regroup the hundreds into tens
to subtract the tens.

2 hundreds 4 tens = 1 hundred 14 tens
14 tens – 8 tens = 6 tens

Mathematics-3 55