Soluzione - Long subtraction

9, 4

9,4

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Spiegazione passo passo

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

Place value	tens	ones	.	tenths

	1	1	,	8
		0	,	2
-		2	,	2
			,

2. Subtract the numbers using long subtraction method

Subtract the numbers in the tenths column from the top number:
8-2-2=4

Place value	tens	ones	.	tenths

	1	1	,	8
		0	,	2
-		2	,	2
			,	4

Because the upper digit (1) in the ones column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (11).

Place value	tens	ones	.	tenths
	0	11
	1	1	,	8
		0	,	2
-		2	,	2
			,	4

Subtract the numbers in the ones column from the top number:
11-0-2=9

Place value	tens	ones	.	tenths
	0	11
	1	1	,	8
		0	,	2
-		2	,	2
		9	,	4

Write 0 in the tens place.

Place value	tens	ones	.	tenths
	0	11
	1	1	,	8
		0	,	2
-		2	,	2
	0	9	,	4

The solution is: 9,4

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