CREATE FUNCTION IsSumEqualToTen
(
    @number1 INT,
    @number2 INT
)
RETURNS BIT
AS
BEGIN
    RETURN
    (
        WITH AddNumbers AS
        (
            SELECT @number1 + @number2
        )
        SELECT CASE WHEN AddNumbers = 10
        THEN 1
        ELSE 0
        END
    )
END

CREATE FUNCTION IsSumEqualToTen
(
    @number1 INT,
    @number2 INT
)
RETURNS BIT
AS
BEGIN
    RETURN
    (
        CASE WHEN (@number1 + @number2) = 10
        THEN 1
        ELSE 0
        END
    )
END