TY  - BOOK
AU  - Lacsamana-Jensen,Paz A
TI  - Speed math: subtraction & division 
SN  - 978-971-27-1789-5
AV  - QA 107.L119  .S16 2006
PY  - 2006///
CY  - Pasig City
PB  - Anvil Publishing
KW  - Mathematics
KW  - Study and teaching (Secondary)
KW  - Subtraction
KW  - Division
N1  - Includes bibliography
ER  -