Solution - Long subtraction

1.444

1.444

See steps

Step-by-step explanation

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

Place value	ones	.	tenths	hundredths	thousandths

	3	.	2	9
-	1	.	8	4	6
		.

Put zeros in the blank number places:

Place value	ones	.	tenths	hundredths	thousandths

	3	.	2	9	0
-	1	.	8	4	6
		.

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 (9) in the next number place which becomes (8) and get (10).

Place value	ones	.	tenths	hundredths	thousandths
				8	10
	3	.	2	9	0
-	1	.	8	4	6
		.

Subtract the numbers in the thousandths column from the top number:
10-0-6=4

Place value	ones	.	tenths	hundredths	thousandths
				8	10
	3	.	2	9	0
-	1	.	8	4	6
		.			4

Subtract the numbers in the hundredths column from the top number:
8-4=4

Place value	ones	.	tenths	hundredths	thousandths
				8	10
	3	.	2	9	0
-	1	.	8	4	6
		.		4	4

Because the upper digit (2) in the tenths 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 (12).

Place value	ones	.	tenths	hundredths	thousandths
	2		12
				8	10
	3	.	2	9	0
-	1	.	8	4	6
		.		4	4

Subtract the numbers in the tenths column from the top number:
12-8=4

Place value	ones	.	tenths	hundredths	thousandths
	2		12
				8	10
	3	.	2	9	0
-	1	.	8	4	6
		.	4	4	4

Subtract the numbers in the ones column from the top number:
2-1=1

Place value	ones	.	tenths	hundredths	thousandths
	2		12
				8	10
	3	.	2	9	0
-	1	.	8	4	6
	1	.	4	4	4

The solution is: 1.444

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Long substraction