Yes, you can combine retirement distribution amounts together for line 4a and show only the taxable RMD on 4b.
However, rollovers are limited to one per person in a 12-month period tax-free.
If the Roth was a trustee-to-trustee transfer, it won't be treated as a rollover. If it was an indirect rollover, it will be subject to these rules and treated as a distribution.
As such, any contribution back to a new Roth IRA (that exceeds earned income) would be considered an "excess" contribution subject to penalties for every year that it remains in the Roth.
If this applies in your case you should remove the Roth amount rolled over by requesting a "return of excess contribution" from the Roth custodian before April 15, 2025.
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