Solution - Long subtraction

66

See steps

Step-by-step explanation

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

Place value	tens	ones

	9	0
-	2	4

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

Place value	tens	ones
	8	10
	9	0
-	2	4

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

Place value	tens	ones
	8	10
	9	0
-	2	4
		6

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

Place value	tens	ones
	8	10
	9	0
-	2	4
	6	6

The solution is: 66

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Terms and topics

Long substraction