Solution - Long subtraction

9.1

9.1

See steps

Step-by-step explanation

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

Place value	tens	ones	.	tenths

	1	2	.	7
-		3	.	6
			.

2. Subtract the numbers using long subtraction method

Subtract the numbers in the tenths column from the top number:
7-6=1

Place value	tens	ones	.	tenths

	1	2	.	7
-		3	.	6
			.	1

Because the upper digit (2) in the ones column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (12).

Place value	tens	ones	.	tenths
	0	12
	1	2	.	7
-		3	.	6
			.	1

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

Place value	tens	ones	.	tenths
	0	12
	1	2	.	7
-		3	.	6
		9	.	1

Write 0 in the tens place.

Place value	tens	ones	.	tenths
	0	12
	1	2	.	7
-		3	.	6
	0	9	.	1

The solution is: 9.1

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Long substraction