Soluzione - Long subtraction

4, 147

4,147

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Spiegazione passo passo

1. Rewrite the numbers from top to bottom, aligned by their place values

Place value	ones	.	tenths	hundredths	thousandths

	4	,	4	3
-	0	,	2	8	3
		,

Put zeros in the blank number places:

Place value	ones	.	tenths	hundredths	thousandths

	4	,	4	3	0
-	0	,	2	8	3
		,

2. Subtract the numbers using long subtraction method

Because the upper digit (0) in the thousandths column is too small to get a positive difference, borrow 1 from the digit (3) in the next number place which becomes (2) and get (10).

Place value	ones	.	tenths	hundredths	thousandths
				2	10
	4	,	4	3	0
-	0	,	2	8	3
		,

Subtract the numbers in the thousandths column from the top number:
10-0-3=7

Place value	ones	.	tenths	hundredths	thousandths
				2	10
	4	,	4	3	0
-	0	,	2	8	3
		,			7

Because the upper digit (2) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (12).

Place value	ones	.	tenths	hundredths	thousandths
			3	12
				2	10
	4	,	4	3	0
-	0	,	2	8	3
		,			7

Subtract the numbers in the hundredths column from the top number:
12-8=4

Place value	ones	.	tenths	hundredths	thousandths
			3	12
				2	10
	4	,	4	3	0
-	0	,	2	8	3
		,		4	7

Subtract the numbers in the tenths column from the top number:
3-2=1

Place value	ones	.	tenths	hundredths	thousandths
			3	12
				2	10
	4	,	4	3	0
-	0	,	2	8	3
		,	1	4	7

Subtract the numbers in the ones column from the top number:
4-0=4

Place value	ones	.	tenths	hundredths	thousandths
			3	12
				2	10
	4	,	4	3	0
-	0	,	2	8	3
	4	,	1	4	7

The solution is: 4,147

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