SOLUTION STEPS (Set 10 — P4 Decimal Addition & Place Value): Question ID: 3775 1. First add the tenths: 6 + 7 = 13 tenths. 2. 13 tenths = 1 one and 3 tenths (since 10 tenths = 1 one). 3. Answer: 13 tenths; 1 one 3 tenths.