Dowdy, Penny.
Estimation /
Penny Dowdy.
- St. Catharines, Ont. : Crabtree Pub., c2009.
- 24 p. : col. ill. ; 29 cm.
- My path to math .
- My path to math. .
Includes index. "Math concepts made simple"--Cover title.
9780778743378 (bound) : $22.95 9780778743552 (pbk.) : $7.95
20089060873
Estimation theory.
j519.5/44