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regrouping hundreds and tens

Sometimes we need to regroup at more than one places while doing subtraction.
Let us understand it with the help of an example.

example 3: Subtract 253 from 800.

Solution: Step 1. Write the smaller number below the bigger H t O
number in columns and start subtracting from 8 0 0

the ones place. – 2 5 3

Since, there is no ones, so regroup the tens and
ones.

But there is no tens.
So, first regroup the hundreds and tens and then tens and ones.

8 hundreds + 0 tens = 7 hundreds + 10 tens

and 10 tens + 0 ones = 9 tens + 10 ones

Step 2. Subtract the ones. Step 3. Subtract the Step 4. Subtract the
10 – 3 = 7 ones tens. hundreds.
H t O 9 – 5 = 4 tens 7 – 2 = 5 hundreds

9 H t O H t O
7 10 10 9 9
8 0 0 7 10 10 7 10 10
– 2 5 3 8 0 0 8 0 0

7 – 2 5 3 – 2 5 3

4 7 5 4 7
Thus, 800 – 253 = 547

Shortcut Method
Brain Sizzlers
When zeros are in the minuend, 431 passengers boarded a

subtracting 1 from both the numbers. metro train. At

It makes the subtraction easier. the first stop 110
passengers get off
the train and 216
H t O H t O passengers get off

8 0 0 –1 7 9 9 at the second stop. If no passengers get
– 2 5 3 –1 – 2 5 2 on the train at both the stops, how many
5 4 7 passengers are there on the train now?

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