Move cursor to specific worksheet in Excel

If I have multiple worksheets (Jan to Dec & Main page) and in my main worksheet, user is allow to key in which month's worksheet to go to and error message popped up (type mismatch) when running the VBA code below. Please advice, thanks.

Sub moveToCell()
Dim Tday As Integer
Dim Tstore As Integer
Dim Tmth As Integer

Tday = Sheets("Main").Range("E3").Value
Tstore = Sheets("Main").Range("E4").Value
Tmth = Sheets("Main").Range("E5").Value

Sheets("Tmth").Activate
Sheets("Tmth").Range(Tday & Tstore).Select
End Sub