The expression is .

First find .

Place value chart for 63 and 97.

Line up the decimal points and draw a line below the numbers.

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First find the sum of the ones digit.

The sum of the ones digit = .

The sum is 10, so carry the ones digit to the next column on the left.

Next find the sum of the tens digit.

The sum of the tens digit = .

The sum is 16, so carry the tens digit to the next column on the left.

Next find .

21 can be written as 021

Place value chart for 160 and 021.

Line up the decimal points and draw a line below the numbers.

First find the sum of the ones digit.

The sum of the tenths digit = .

Next find the sum of the tens digit.

The sum of the tens digit = .

Next find the sum of the hundreds digit.

The sum of the hundreds digit = .

The sum is 181.