Soluzione - Long subtraction

234

234

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Spiegazione passo passo

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

Place value	thousands	hundreds	tens	ones

	6	3	1	8
-	6	0	8	4

2. Subtract the numbers using long subtraction method

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

Place value	thousands	hundreds	tens	ones

	6	3	1	8
-	6	0	8	4
				4

Because the upper digit (1) in the tens 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 (11).

Place value	thousands	hundreds	tens	ones
		2	11
	6	3	1	8
-	6	0	8	4
				4

Subtract the numbers in the tens column from the top number:
11-8=3

Place value	thousands	hundreds	tens	ones
		2	11
	6	3	1	8
-	6	0	8	4
			3	4

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

Place value	thousands	hundreds	tens	ones
		2	11
	6	3	1	8
-	6	0	8	4
		2	3	4

Subtract the numbers in the thousands column from the top number:
6-6=0

Place value	thousands	hundreds	tens	ones
		2	11
	6	3	1	8
-	6	0	8	4
	0	2	3	4

The solution is: 234

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