Select any strategy that can be used to add 12 + 77.
Choose all answers that apply:
Add 10...
Mathematics, 24.03.2020 00:13 isaiahhuettnerowgg8d
Select any strategy that can be used to add 12 + 77.
Choose all answers that apply:
Add 10 + 75.
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Add 12 + 80 then subtract 3.
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