Marguerite is building a box from strips of wood. she needs 78 pieces of wood that are each 29 centimeters long. the wood comes in boards that are 6 meters long. how many boards will she need? explain

Each strip is 29 cm


Change the m to cm

6 m = 600 cm


Find the number of strips for 1 6m-board

Find the number of strips that can be cut from the 6m board.

600 ÷ 29 = 20 pieces remainder 20cm

So we can only cut 20 pieces of 29 strips from one 6m board.


Find number of boards needed 

70 ÷ 20 = 3.5 

We need 3.5 of the 6m boards.

Since she can't have half a board, she has to buy 4 pieces of the board.


4 pieces of the 6m board.