Answer keys for some math books published by Houghton Mifflin Harcourt are available online through the company’s Digital Teacher Management Center. To find out if math answer keys are available online for a particular title, contact the HMH Customer Care Online Service Center through the link on the home page.
The HMH “Go Math!” series of titles offers premium classroom packages that include both print and digital materials. These packages provide a teacher subscription to the Digital Teacher Management Center that allows teachers to print customized answer keys. Customers need an institutional account to order math texts, including the premium classroom packages, from HMH and to gain access to the online solutions.