Answer
19.66
Step-by-step explanation
you would line the numbers up so that the 7 in 17 is above the 2 and that you line up the decimals. to do this you would do 17.00 to make it even and add that way.
17 goes to 17.00
17.00
2.66. ( Add this way)
1 9 . 66. (six plus zero is 6), (seven plus 2 is 9),