Soluzione - Long subtraction

184591, 4

184591,4

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Spiegazione passo passo

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

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths

	3	3	0	4	6	3
-	1	4	5	8	7	1	,	6
							,

Put zeros in the blank number places:

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths

	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
							,

2. Subtract the numbers using long subtraction method

Because the upper digit (0) in the tenths 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	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
							,

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

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
							,	4

Subtract the numbers in the ones column from the top number:
2-1=1

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
						1	,	4

Because the upper digit (6) in the tens 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 (16).

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
						1	,	4

Subtract the numbers in the tens column from the top number:
16-7=9

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
					9	1	,	4

Because the upper digit (3) in the hundreds column is too small to get a positive difference, borrow 1 from the number to the left (30) which becomes (29) and get (13).

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
		2	9	13
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
					9	1	,	4

Subtract the numbers in the hundreds column from the top number:
13-8=5

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
		2	9	13
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
				5	9	1	,	4

Subtract the numbers in the thousands column from the top number:
9-5=4

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
		2	9	13
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
			4	5	9	1	,	4

Because the upper digit (2) in the ten thousands 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 (12).

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
	2	12
		2	9	13
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
			4	5	9	1	,	4

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

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
	2	12
		2	9	13
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
		8	4	5	9	1	,	4

Subtract the numbers in the hundred thousands column from the top number:
2-1=1

Place value	hundred thousands	ten thousands	thousands	hundreds	tens	ones	.	tenths
	2	12
		2	9	13
				3	16
						2		10
	3	3	0	4	6	3	,	0
-	1	4	5	8	7	1	,	6
	1	8	4	5	9	1	,	4

The solution is: 184591,4

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