TASK DEFINITION: You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.
PROBLEM: There are 115 pencils in the drawer. Sara placed 100 pencils in thedrawer. How many pencils are now there in all?

SOLUTION: 215.0

PROBLEM: At the hardware store, 0.2 the nails are size 2d and 0.5 the nails are size 4d. What fraction of the nails are either size 2d or 4d?

SOLUTION: 0.7

PROBLEM: Mike bought some toys. He bought marbles for $9.05, a football for $4.93, and spent $6.52 on a baseball. In total, how much did Mikespend on toys?

SOLUTION:
20.5