What is the prime factorisation of the number found in part a)?
Gordon needs to cut the block
into smaller blocks with dimensions 4 cm x 5 cm x 5 cm.
What is the maximum number of small blocks
Gordon can make from the larger block?
Make sure you show all your working.
Bryan and Sue were playing a guessing game.
Sue thought of a number between 1 and 100 which Bryan had to guess.
Bryan was allowed to ask five questions,
which are listed with Sue's responses in the table below.
Bryan's Questions Sue's Responses
Is it prime? Is it odd? Is it less than 50?
Is it a multiple of 3? Is it a multiple of 7?
No No Yes Yes Yes
What is the number that Sue thought of?
Start by writing down a number table up to 100.
Look at each response in turn and cross
off numbers until you've only got one left.