Day Two Try these. 1


B_77-01


Bob the Builder is building a winners’ podium for race day. He uses six blocks to build steps for 1st, 2nd and 3rd places. How many more blocks would he need to build a step for 4th place?


Answer: 2


Marks:


/1


At the end of the day, Bob likes to arrange bricks in stacks of equal height. He can only take 1 or 2 bricks from each stack at a time, because they are so heavy. How can he make the stacks equal in just two moves?


A


B


C


D


Answer: 3


Marks:


(a) Estimate how many small cubes are in a Rubik’s Cube altogether. (b) Use cubes to make a Rubik’s Cube like the one shown. Were you near your estimate?


/2


Answers: (a)


(b)


Marks: Today’s Marks:


/2 /5 81


Week 19 | Strategy: Make a Model


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