What is longsub 81-36 ?

The solution to longsub 81-36 is 45

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longsub 81-36

long subtraction

81 - 36

45

Solution steps

81 - 36

Line up the numbers

- 8316

Subtract each column of digits, starting from the right and working left

If the digit being subtracted is larger than the digit above it, 'borrow' a digit from the next column to the left.

In the bolded column, subtract the second digit from the first

- 8316

The bottom number is larger than the upper number. Try to'borrow' a digit from the left.

Borrow

1

from

8

. The remainder is

7

- 7831016

Add

1

ten to

1

10 + 1 = 11

- 7831116

In the bolded column, subtract the second digit from the first:

11 - 6 = 5

\frac{- 7 8 3 11 1 6}{+ 5}

In the bolded column, subtract the second digit from the first:

7 - 3 = 4

\frac{- 7 8 3 11 1 6}{+ 4 5}

= 45

- 1^{2} + 1

1.55

2 (4 (7 + 4 (5 \cdot 3 - 9)) - 3 (40 - 8))

4^{2} + 6^{2}

\frac{250}{2}