1. Measurement
Money
What will we learn today?
• Converting an amount of money
in decimal notation to
cents, and vice versa.

2. Before we start,
let’s learn some
useful terms.

3. There are different
denominations (value) of
coins and notes we use
in Singapore.

5. This is how we write cents.
fifty cents
50¢

6. This is how we write dollars.
two dollars
$2

7. has the same value as

9. has the same value as _____

10. has the same value as 5

12. Ali has 60¢. He bought an
eraser and was left with 20¢.
How much is the eraser?

13. Ali has 60¢. He bought an
eraser and was left with 20¢.
How much is the eraser?
60¢ - 20¢ =

15. Ali has 60¢. His father gives him
20¢ and his money gives him
another 20¢. How much does he
have now?
60¢ + 20¢ + 20¢ = 100 ¢

16. Ali has 60¢. His father gives him
20¢ and his money gives him
another 20¢. How much does he
have now?
60¢ + 20¢ + 20¢ = 100 ¢

17. Ali has 60¢. His father gives him
20¢ and his money gives him
another 20¢. How much does he
have now?
60¢ + 20¢ + 20¢ = 100 ¢
We can’t leave in cents.

18. Ali has 60¢. His father gives him
20¢ and his money gives him
another 20¢. How much does he
have now?
60¢ + 20¢ + 20¢ = 100 ¢
We have to convert cents
into dollars.

19. Instead of writing 100 ¢ ,
we can represent the value
by writing $1.
$1 is equal to 100 ¢

20. $1 is equal to 100 ¢.
which means
$2 is equal to 200 ¢.

22. 1) $4 is equal to ____ ¢.
2) $2.50 is equal to ____¢.
3) $3.30 is equal to ____¢.

23. 1) $4 is equal to 400 ¢.
2) $2.50 is equal to 250 ¢.
3) $3.30 is equal to 330 ¢.

24. 1) 215¢ is equal to $____.
2) 120¢ is equal to $____.
3) 80¢ is equal to $____.

25. 1) 215¢ is equal to $2.15
2) 120¢ is equal to $1.20
3) 80¢ is equal to $0.80

26. How do we write in cents and dollars
10 cents $0.10
20 cents $0.20
30 cents $0.30
40 cents $0.40
50 cents $0.50
60 cents $0.60
70 cents $0.70
80 cents $0.80
90 cents $0.90
1 dollar $1

27. Are you ready to
try out the
questions?