Video Transcript
Which of the following represents
100 piastres? Is it 50 piastres plus 25 piastres
plus 25 piastres? One pound plus 50 piastres. Is it one pound plus 25 piastres
plus 25 piastres? Or is it 25 piastres plus 25
piastres plus 25 piastres?
In this question, we have to find
the group of coins which represents 100 piastres. We could use this bar model to
help. We know the whole amount or the
amount we’re looking to make is 100 piastres. We have a coin worth 50 piastres
and two 25s. We know that double 25 is 50 and
double 50 equals 100. 50 plus 25 plus 25 equals 100
piastres. These coins represent 100
piastres. If we have a one-pound coin and a
50-piastres coin, we’ve got more than 100 piastres because the one-pound coin is
worth 100 piastres. 100 plus 50 is 150.
This group of coins also represents
150 piastres. 100 plus 25 plus 25 equals 150. And the total of our three
25-piastre coins is 75. 25 plus 25 plus 25 equals 75. This is the group of coins which
represents 100 piastres.
