why is it important to line up the digits in each place value position when subtracting?

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22-10-2016
Mathematics

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why is it important to line up the digits in each place value position when subtracting?

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401211 401211 · Answer 1 · 2016-10-22T02:09:10+02:00

401211 401211

22-10-2016

It would not make sense if you were to do
34
28
The right way is

34
28

Another example is that if you were to subtract by 1 digit by 2

78
1

This is the wrong one

78
1

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kristenwood141 kristenwood141 · Answer 2 · 2016-10-22T02:10:49+02:00

kristenwood141 kristenwood141

22-10-2016

so that you don't subtract the wrong numbers and get the wrong answers. ,
123
-----
386
_____
?

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