Solution - Long subtraction

127

127

See steps

Step-by-step explanation

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

Place value	hundreds	tens	ones

	1	3	6
			1
-			8

2. Subtract the numbers using long subtraction method

Because the upper digit (6) 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 (16).

Place value	hundreds	tens	ones
		2	16
	1	3	6
			1
-			8

Subtract the numbers in the ones column from the top number:
16-1-8=7

Place value	hundreds	tens	ones
		2	16
	1	3	6
			1
-			8
			7

Write 2 in the tens place.

Place value	hundreds	tens	ones
		2	16
	1	3	6
			1
-			8
		2	7

Write 1 in the hundreds place.

Place value	hundreds	tens	ones
		2	16
	1	3	6
			1
-			8
	1	2	7

The solution is: 127

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Terms and topics

Long substraction