At the back of the book there is a Key for you to check your answers to the exercises (page 336).

If possible, check your answers with somebody who speaks English well.

Have a go at them for yourself; then check your answers with those on page 29.

You can also check your answers, pause a game or save one to finish later.

"I'm the kind of person who checks my answers twice before I hand in a test."

Finally, there is a Key at the back of the book (pages 265-295) for students to check their answers.

If someone handed in a test early, she told him to check his answers.

The test measures not just the ability to solve math problems but the willingness to reflect on and check your answers.

Complete these and check your last four answers.

Readers can try to solve the problems and check their answers, which are located on the back cover of the book.