Soluzione - Long subtraction

Spiegazione passo passo

Perché imparare questo

Termini e argomenti

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

2. Subtract the numbers using long subtraction method

9, 285

9,285

Guarda i passaggi

Place value	tens	ones	.	tenths	hundredths	thousandths

	1	1	,	6	2	5
-		2	,	3	4
			,

Put zeros in the blank number places:

Place value	tens	ones	.	tenths	hundredths	thousandths

	1	1	,	6	2	5
-		2	,	3	4	0
			,

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

Place value	tens	ones	.	tenths	hundredths	thousandths

	1	1	,	6	2	5
-		2	,	3	4	0
			,			5

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	tens	ones	.	tenths	hundredths	thousandths
				5	12
	1	1	,	6	2	5
-		2	,	3	4	0
			,			5

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

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

Subtract the numbers in the tenths column from the top number:
5-3=2

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

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).

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

Write 0 in the tens place.

The solution is: 9,285

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Why learn this

Place value

hundredths

thousandths

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