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Grade 3 - Mathematics
5.14 Subtraction - 3 digit
Subtraction without regrouping:
Start subtracting from the ones place.
If the subtrahend is lesser than minuend in ones place then we borrow 1 from tens place.
If the subtrahend is lesser than minuend in tens place then we borrow 1 from hundreds place
Answer: 533
Subtraction with regrouping:
Start from the ones place, 4 is lesser than 6. So 1 is borrowed from 2 and 4 becomes 14.
In tens place, 2 becomes 1, now again 1 is less than 5, so 1 is borrowed from 8 and 1 becomes 11.
In ones place 4 is subtracted from 7.
Answer: 368
Subtracting across zeros:
When there is a zero it is always made 10 by borrrowing 1 from digits in higher place values.
In ones place 4 is made 14 and zero is made 9 (since 1 is borrowed from 10 to make 14)
In hundreds place 3 becomes 2.
Answer: 117
Directions:
Subtract the following. Also write at least ten examples of your own.
Q 1
: 300 -158 =
152
252
142
Q 2
: 500 - 250 =
450
250
350
Q 3
: 100 - 95 =
50
5
105
Q 4
: 921 - 721 =
102
201
200
Q 5
: 328 - 129 =
201
200
199
Q 6
: 485 - 123 =
361
462
362
Q 7
: 682 - 190 =
512
592
492
Q 8
: 345 - 126 =
219
220
121
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Question 10: This question is available to subscribers only!
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