Solution - Long subtraction

2, 519

2,519

See steps

Step-by-step explanation

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

Place value	thousands	hundreds	tens	ones

	2	5	2	0
-				1

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 (2) in the next number place which becomes (1) and get (10).

Place value	thousands	hundreds	tens	ones
			1	10
	2	5	2	0
-				1

Subtract the numbers in the ones column from the top number:
10-1=9

Place value	thousands	hundreds	tens	ones
			1	10
	2	5	2	0
-				1
				9

Write 1 in the tens place.

Place value	thousands	hundreds	tens	ones
			1	10
	2	5	2	0
-				1
			1	9

Write 5 in the hundreds place.

Place value	thousands	hundreds	tens	ones
			1	10
	2	5	2	0
-				1
		5	1	9

Write 2 in the thousands place.

Place value	thousands	hundreds	tens	ones
			1	10
	2	5	2	0
-				1
	2	5	1	9

The solution is: 2,519

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Long substraction