  In this paper, we introduce the notion of fuzzy soft numbers. Here defined
fuzzy soft number and four arithmetic operations $ \tilde{+}, \tilde{-},
\tilde{\times}, \tilde{\div} $ and related properties. Also introduce Hausdorff
distance, Fuzzy soft metric space, convergence sequence, Cauchy sequence,
Continuity, and uniform continuity of fuzzy soft numbers. At starting of this
paper, we study convex and concave fuzzy soft sets and some of their
properties.
