THOMPSON, H. A.
Know your tables and basic arithhmetic: Handbook for parents and teachers - London : Heinemann Educational Books Ltd , 1979. - vi , 58 p . : ill . ; 23 cm.
0435027786
Arithmetic
Arithmetic - teaching and learning
513
Know your tables and basic arithhmetic: Handbook for parents and teachers - London : Heinemann Educational Books Ltd , 1979. - vi , 58 p . : ill . ; 23 cm.
0435027786
Arithmetic
Arithmetic - teaching and learning
513