Soluzione - Long subtraction

4, 046

4,046

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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

	5	,	6	3
-	1	,	5	8	4
		,

Put zeros in the blank number places:

Place value	ones	.	tenths	hundredths	thousandths

	5	,	6	3	0
-	1	,	5	8	4
		,

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
	5	,	6	3	0
-	1	,	5	8	4
		,

Subtract the numbers in the thousandths column from the top number:
10-0-4=6

Place value	ones	.	tenths	hundredths	thousandths
				2	10
	5	,	6	3	0
-	1	,	5	8	4
		,			6

Because the upper digit (2) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (12).

Place value	ones	.	tenths	hundredths	thousandths
			5	12
				2	10
	5	,	6	3	0
-	1	,	5	8	4
		,			6

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

Place value	ones	.	tenths	hundredths	thousandths
			5	12
				2	10
	5	,	6	3	0
-	1	,	5	8	4
		,		4	6

Subtract the numbers in the tenths column from the top number:
5-5=0

Place value	ones	.	tenths	hundredths	thousandths
			5	12
				2	10
	5	,	6	3	0
-	1	,	5	8	4
		,	0	4	6

Subtract the numbers in the ones column from the top number:
5-1=4

Place value	ones	.	tenths	hundredths	thousandths
			5	12
				2	10
	5	,	6	3	0
-	1	,	5	8	4
	4	,	0	4	6

The solution is: 4,046

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