With Good Prospects - Team A
Sarah found some cubic boxes (edge length: 40 cm) and imagines a staircaise out of boxes on the outside of the house to get to its roof - creating a lookout!!
How many cubes would be needed? Sarah hasn't counted the boxes yet but there are definetly more than 10 but less than 20. Would that be enough?
Estimate: How many cubes are needed to build a staircase with 6 steps?
How many steps would a staircase made with 30 cubes have?