Detailed Instructions: 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:Jason has 7 violet balloons and 4 red balloons. He lost 3 of the violetballoons. How many violet balloons does Jason have now?
Solution:
4.0