Solution - Long subtraction

3323.012

3323.012

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	.	tenths	hundredths	thousandths

	3	3	9	0	.	0	2
-			6	7	.	0	0	8
					.

Put zeros in the blank number places:

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths

	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
					.

2. Subtract the numbers using long subtraction method

Because the upper digit (0) in the thousandths 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	.	tenths	hundredths	thousandths
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
					.

Subtract the numbers in the thousandths column from the top number:
10-0-8=2

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
					.			2

Subtract the numbers in the hundredths column from the top number:
1-0=1

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
					.		1	2

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

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
					.	0	1	2

Because the upper digit (0) in the ones column is too small to get a positive difference, borrow 1 from the digit (9) in the next number place which becomes (8) and get (10).

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
			8	10
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
					.	0	1	2

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

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
			8	10
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
				3	.	0	1	2

Subtract the numbers in the tens column from the top number:
8-6=2

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
			8	10
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
			2	3	.	0	1	2

Write 3 in the hundreds place.

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
			8	10
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
		3	2	3	.	0	1	2

Write 3 in the thousands place.

Place value	thousands	hundreds	tens	ones	.	tenths	hundredths	thousandths
			8	10
							1	10
	3	3	9	0	.	0	2	0
-			6	7	.	0	0	8
	3	3	2	3	.	0	1	2

The solution is: 3323.012

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Long substraction