TY  - BOOK
AU  - Lacsamana-Jensen,Paz Alegria
TI  - Calculations made easy: addition & multiplication, subtraction & division 
SN  - 9789712726484
PY  - 2012///
CY  - Mandaluyong City
PB  - Anvil Pub
KW  - Mathematics
KW  - Exercises, problem solving, etc
ER  -