Robert arthur yawin (4 risultati)

Paperback. Condizione: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Very Good. Condizione sovraccoperta: None as Issued. First Edition, First Printing. Text/AS NEW. Softcover/VG; sound but shelfworn; edge & surface rubs, faint creasings to corners, surface discoloration, and, loss to lower spine corner. PO names to fEP. Collection of math puzzles & tricks to suprise and delight all ages, particulary middle school students. 89 pgs w/illustrations & diagrams, and answers to rear. How Many Days in a Month? --- With fists clenched, count off year's months on knuckles & hollows; all months on knuckles have 31 days, all falling on hollows have 30 except for February with 28 or 29. Then, magic fun with the numbers "7, 11 & 13": Have friend pick any 3-digit number: a) Repeat same numerals to form a 6-digit number; b) Divide number by 7; c) Divide answer by 11; and d) Divide again by 13, and, get the very number begun with! Strong copy despite listed flaws.…