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P. 2
Borrowing, carrying and regrouping are the same ideas when
we subtract.
In subtraction, we borrow when we are subtracting one
number that is greater than another (The subtrahend is greater
than the minuend).
Sometimes we need a little bit extra in order to do our
subtraction, so we use an amount from the column to the left.
Example: - 72 – 38 =?
In the above example since we cannot subtract 8 from 2, we need to
borrow. Borrow“1’’ ten from the tens column and regroup the ones
column as 10 ones + 2 ones = 12 ones. Subtract 8 ones from 12 ones
i.e. 12 – 8 = 4 .Write 4 in the ones column .Subtract the tens column.
Since 1 ten is borrowed by the ones column, 7 tens have become 6
tens. Subtract 3 tens from 6 tens i.e. 6 – 3 = 3 tens. Write 3 tens in the
tens column thus 72 – 38 = 34 .
Learning outcome: The students were able to perform
subtraction of 2-digit numbers with borrowing.
LP 2 – Subtraction with borrowing (3-digit)
Learning objective: The students will be able to perform subtraction of 3-
digit numbers with borrowing.