Regroup 1 one as 10 tenths, then subtract.<br><br>
• 3 = 2 ones + 10 tenths<br>
• 0.7 = 0 ones + 7 tenths<br>
• Ones: 2 − 0 = 2<br>
• Tenths: 10 − 7 = 3<br>
• 3 − 0.7 = 2.3<br><br>
Final Answer: 2.3