Soluzione - Long subtraction

0, 0000025

0,0000025

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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	ten thousandths	hundred thousandths	millionths	ten millionths

	0	,	0	0	0	0	0	3
-	0	,	0	0	0	0	0	0	5
		,

Put zeros in the blank number places:

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths

	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,

2. Subtract the numbers using long subtraction method

Because the upper digit (0) in the ten millionths 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	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,

Subtract the numbers in the ten millionths column from the top number:
10-0-5=5

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,							5

Subtract the numbers in the millionths column from the top number:
2-0=2

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,						2	5

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

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,					0	2	5

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

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,				0	0	2	5

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

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,			0	0	0	2	5

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

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,		0	0	0	0	2	5

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

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
		,	0	0	0	0	0	2	5

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

Place value	ones	.	tenths	hundredths	thousandths	ten thousandths	hundred thousandths	millionths	ten millionths
								2	10
	0	,	0	0	0	0	0	3	0
-	0	,	0	0	0	0	0	0	5
	0	,	0	0	0	0	0	2	5

The solution is: 0,0000025

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