He was supposed to be working on long-form multiplication problems—457 x 214, 378 x 29, 112 x 978—and my son kept asking me to check his answers. But it had been so long since I’d written out any math ...

Winnie Cooper has written a maths book? This is improbable for two reasons. Winnie was a fictional character in the American 1980s TV series The Wonder Years and she was more interested in boys than ...