Video Transcript
What number is missing? There is one pound and what
pence.
Now, often, if we want to count an
amount of money, there’s a little bit of sorting we need to do. Perhaps we have a group of coins in
our hand and they’re all jumbled up. But in this question, all the coins
are neatly in a straight line. And they’ve actually been sorted
out for us. We know this because we’re given a
sentence to describe the coins. And it says there is one pound and
what pence.
Now we know we can sort notes and
coins into those that represent pounds and those that represent pence. And if we look at the picture of
the line of coins, we can see that one pound that’s mentioned in our sentence
straightaway. It’s the first coin that’s
there. Then there’s a little gap, and then
there are some more coins. These must be the coins that
represent a number of pence. And this is going to give us our
missing number that we need to find. So to help us find the total of
this second group of coins, we’re going to need to remember what each coin is
worth.
To begin with, we’ve got two
20-pence coins. Then we’ve got three five-pence
coins, and then finally a two-pence coin on the end. We could use a number line to help
us add these coins together. 20, 40, 45, 50, 55, and then
57. The total of this second group of
coins is 57 pence. And it was quite easy to add them
together, wasn’t it, because they were already put in order for us. There is one pound and 57
pence. And the missing number is 57.
