Solution - Long subtraction

122, 222, 219

122,222,219

See steps

Step-by-step explanation

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

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones

	1	2	2	2	2	2	2	2	2
-									3

2. Subtract the numbers using long subtraction method

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

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3

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

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
									9

Write 1 in the tens place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
								1	9

Write 2 in the hundreds place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
							2	1	9

Write 2 in the thousands place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
						2	2	1	9

Write 2 in the ten thousands place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
					2	2	2	1	9

Write 2 in the hundred thousands place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
				2	2	2	2	1	9

Write 2 in the millions place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
			2	2	2	2	2	1	9

Write 2 in the ten millions place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
		2	2	2	2	2	2	1	9

Write 1 in the hundred millions place.

Place value	hundred millions	ten millions	millions	hundred thousands	ten thousands	thousands	hundreds	tens	ones
								1	12
	1	2	2	2	2	2	2	2	2
-									3
	1	2	2	2	2	2	2	1	9

The solution is: 122,222,219

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Terms and topics

Long substraction