Question

Cold weather can be especially hard on Kurt's grandfather, so Kurt is knitting him a striped scarf for his birthday. The scarf is almost finished when Kurt discovers a mistake! He has to unravel 0.5 feet of the scarf, and now the remaining part is only 3.75 feet long

Answer 1

Kurt originally knitted the scarf to be 3.75 feet + 0.5 feet = 4.25 feet long.

I found the answer by using basic addition. I added the length that Kurt had to unravel (0.5 feet) to the remaining length of the scarf (3.75 feet) to find the original length of the scarf (4.25 feet).

Explanation: