Soluzione - Long subtraction

30.437

30.437

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Spiegazione passo passo

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

Place value	ten thousands	thousands	hundreds	tens	ones

	8	5	7	3	0
-	5	5	2	9	3

2. Subtract the numbers using long subtraction method

Because the upper digit (0) in the ones 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	ten thousands	thousands	hundreds	tens	ones
				2	10
	8	5	7	3	0
-	5	5	2	9	3

Subtract the numbers in the ones column from the top number:
10-3=7

Place value	ten thousands	thousands	hundreds	tens	ones
				2	10
	8	5	7	3	0
-	5	5	2	9	3
					7

Because the upper digit (2) in the tens column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (12).

Place value	ten thousands	thousands	hundreds	tens	ones
			6	12
				2	10
	8	5	7	3	0
-	5	5	2	9	3
					7

Subtract the numbers in the tens column from the top number:
12-9=3

Place value	ten thousands	thousands	hundreds	tens	ones
			6	12
				2	10
	8	5	7	3	0
-	5	5	2	9	3
				3	7

Subtract the numbers in the hundreds column from the top number:
6-2=4

Place value	ten thousands	thousands	hundreds	tens	ones
			6	12
				2	10
	8	5	7	3	0
-	5	5	2	9	3
			4	3	7

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

Place value	ten thousands	thousands	hundreds	tens	ones
			6	12
				2	10
	8	5	7	3	0
-	5	5	2	9	3
		0	4	3	7

Subtract the numbers in the ten thousands column from the top number:
8-5=3

Place value	ten thousands	thousands	hundreds	tens	ones
			6	12
				2	10
	8	5	7	3	0
-	5	5	2	9	3
	3	0	4	3	7

The solution is: 30,437

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