Soluzione - Long subtraction

1, 52

1,52

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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

	2	,	4
	0	,	6	6
-	0	,	2	2
		,

Put zeros in the blank number places:

Place value	ones	.	tenths	hundredths

	2	,	4	0
	0	,	6	6
-	0	,	2	2
		,

2. Subtract the numbers using long subtraction method

Because the upper digit (0) 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 (10).

Place value	ones	.	tenths	hundredths
			3	10
	2	,	4	0
	0	,	6	6
-	0	,	2	2
		,

Subtract the numbers in the hundredths column from the top number:
10-0-6-2=2

Place value	ones	.	tenths	hundredths
			3	10
	2	,	4	0
	0	,	6	6
-	0	,	2	2
		,		2

Because the upper digit (3) in the tenths column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (13).

Place value	ones	.	tenths	hundredths
	1		13
			3	10
	2	,	4	0
	0	,	6	6
-	0	,	2	2
		,		2

Subtract the numbers in the tenths column from the top number:
13-6-2=5

Place value	ones	.	tenths	hundredths
	1		13
			3	10
	2	,	4	0
	0	,	6	6
-	0	,	2	2
		,	5	2

Subtract the numbers in the ones column from the top number:
1-0-0=1

Place value	ones	.	tenths	hundredths
	1		13
			3	10
	2	,	4	0
	0	,	6	6
-	0	,	2	2
	1	,	5	2

The solution is: 1,52

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