I've done up a simple loop that should work adequetly for this situation:
Sub Macro1()
Dim numrows As Long
Sheets("tier 1a").Activate
Range("A1").Activate
While Not ActiveCell.FormulaR1C1 = "" 'will run untill a blank is encountered.
On Error Resume Next
'gets number of rows for sheet1 so as to paste after last row
numrows = Sheets("Sheet1").Cells.Find("*", [A1], , , xlByRows, xlPrevious).Row
On Error GoTo 0
'copy A1 - A10 and paste on sheet1 in row after last used row
Range(ActiveCell, ActiveCell.Offset(9, 0)).Copy Sheets("Sheet1").Cells(numrows + 1, 1)
Range(ActiveCell, ActiveCell.Offset(9, 0)).Cells.Delete xlShiftUp 'delete copied cells
'activate tier 1b, copy cells A1 - A5 and paste on sheet1.
Sheets("tier 1b").Activate
Range("A1", "A5").Cells.Copy Sheets("Sheet1").Cells(numrows + 11, 1) 'use numrows + 11 as 10 rows have been added without updating numrows
Range("A1", "A5").Cells.Delete xlShiftUp 'delete copied cells
'activate sheet tier 1c, copy cells a1 - a5 and paste on sheet1.
Sheets("tier 1c").Activate
Range("A1", "A5").Cells.Copy Sheets("Sheet1").Cells(numrows + 16, 1) 'use num rows + 16 because 15 rows have been pasted now without incrementing num rows.
Range("A1", "A5").Cells.Delete xlShiftUp
'activate tier 1a and go to cell a1
Sheets("tier 1a").Activate 'move back to sheet tier1a and activate cell a1. if there is data, loop will run again in all 3 sheets
Range("A1").Activate
Wend
End Sub
please do note that: "Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results." - from the "on-topic" help page.
Since this was a small, probably 1 time thing and it was relatively basic I made it for you. but in future depending on the level of difficulty it may be difficult getting an answer.
This macro makes a few assumptions:
1)there are no blanks (at least not in tier1a at the 10 row intervals)
2)the number of rows is tier1b and tier1c are half as many as tier1a (because you're taking the first 10 from tier1a and only the first 5 from tier1b and tier1c)
3)when you say first 10 cells, I assume you mean first 10 rows in column A
4)because you say "cut" the data in column a is copied and deleted(same as cutting) which leaves column a blank, and any other colums untouched.
please let me know if you need this to be more dynamic, or if you need the entire row to be cut instead of just column a