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: A construction company bought 5.91 tons of gravel and 8.19 tons ofsand. How many tons of material did the company buy in all?

SOLUTION: 14.1

PROBLEM: Sally grew 6 carrots. Fred grew 4 carrots. How many carrots did theygrow in all?

SOLUTION: 10.0

PROBLEM: Nancy grew 2 onions, Dan grew 9 onions, and Mike grew 4 onions.They worked for 6 days on the farm. How many onions did they growin total?

SOLUTION:
15.0