Mental arithmetic problems for juniors : teachers' book /
Bradbury, E.
Mental arithmetic problems for juniors : teachers' book / by E. and N.L. Bradbury. - [Oxford]: [Basil Blackwell], [19--]. - v. ; 22 cm.
Mental Arithmetic
Mathematics--Teaching
513.9
Mental arithmetic problems for juniors : teachers' book / by E. and N.L. Bradbury. - [Oxford]: [Basil Blackwell], [19--]. - v. ; 22 cm.
Mental Arithmetic
Mathematics--Teaching
513.9