TY  - BOOK
AU  - Harnadek,Anita E
TI  - Critical thinking activities for mathematics: book 4 
AV  - QA135 .C758 1991
PY  - 1991///
CY  - Pacific Grove, California
PB  - Midwest Publications Company
KW  - Mathematics
KW  - Problems, exercises, etc
KW  - Arithmetic
KW  - Juvenile literature
N1  - 2
ER  -