Miss Joplin is planning the resources for a maths lesson. She needs...
• 1 ruler per pupil plus 4 spare
. 5 pieces of dotty paper per pupil
. 5 pieces of card per pupil plus 6 spare.
Write down formulae for the number of rulers (r)
and the amount of dotty paper (d) and card (c).
Use p for the number of pupils.
d =
(6)
There are 21 pupils in the class. How many of
each item does Miss Joplin need?
d =
C в
[3]