Align decimal points and subtract \(12.36\) and \(5.78\).<br><br>&bull; Hundredths: 6 − 8 cannot be done, so regroup 1 tenth (10 hundredths) from 3 tenths.<br>&bull; 16 − 8 = 8.<br>&bull; Tenths: 2 − 7 cannot be done, so regroup 1 one (10 tenths) from 12 ones.<br>&bull; 12 − 7 = 5.<br>&bull; Ones: 11 − 5 = 6.<br><br>Final Answer: 6.58