... Four of the diagrams below show this object viewed from different angles, but one diagram shows a different object... Allan and Zarwa are playing a game tossing a coin.[r] ...
... I notice that if I remove 100 toy soldiers, then I can arrange the remaining ones into a rectangular array with 5 fewer rows and 5 more columns. How many toy soldiers would I have to rem[r] ...
... Republication, systematic copying, or multiple reproduction of any part of this material is permitted only under license from the Chiuchang Mathematics Foundation. Requests for such p[r] ...
... Leila has a number of identical square tiles that she puts together edge to edge in a single row, making a rectangle.. The perimeter of this rectangle is three times that of a single til[r] ...
... However, Donald wants the left shoe of each pair to be somewhere to the left of the corresponding right shoe.. How many ways are there to do this.[r] ...
... How many toy soldiers would I have to remove from the original configuration to be able to arrange the remaining ones into a rectangular array with 11 fewer rows and 11 more columns. 30[r] ...
... For n ≥ 3, the sequence of centred n-gon numbers is found by starting with a central dot, then adding layers consisting of n-gons of dots around this centre, where the number of dots on [r] ...
... Republication, systematic copying, or multiple reproduction of any part of this material is permitted only under license from the Chiuchang Mathematics Foundation.. Requests for such [r] ...
... Republication, systematic copying, or multiple reproduction of any part of this material is permitted only under license from the Chiuchang Mathematics Foundation.. Requests for such [r] ...