00730 a2200241 4500 124495 9780545211451 Escola Canadense de Niteroi G4 - GOL Goldstone, Bruce Greater estimations 1st. ed. USA 32 p. 2008 How many rubber duckies are on the cover of this book? You could count each one―or you could estimate. An estimate is a good guess. Are there more than ten rubber ducks? Are there fewer than a thousand? Math Operations Estimates Math for kids Non-Fiction Mathematics (Literature) BK 0 0 0 0 80.1 80.1 2024-02-09 0 G4 - GOL A00378 2024-02-09 21:20:54 2024-02-09 BK 124495 124495