Kungfu math p2 slide7 (money)

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

Transcript of Kungfu math p2 slide7 (money)

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• Converting an amount of money in decimal notation to cents, and vice versa.

What will we learn today?

MeasurementMoney

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

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

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This is how we write cents.

fifty cents

50¢

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This is how we write dollars.

two dollars

$2

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has the same value as

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has the same value as _____

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has the same value as 5

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

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

60¢ - 20¢ =

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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 ¢

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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 ¢

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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.

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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.

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Instead of writing 100 ¢ , we can represent the value by writing $1.

$1 is equal to 100 ¢

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$1 is equal to 100 ¢.

which means

$2 is equal to 200 ¢.

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1) $4 is equal to ____ ¢.

2) $2.50 is equal to ____¢.

3) $3.30 is equal to ____¢.

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1) $4 is equal to 400 ¢.

2) $2.50 is equal to 250 ¢.

3) $3.30 is equal to 330 ¢.

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1) 215¢ is equal to $____.

2) 120¢ is equal to $____.

3) 80¢ is equal to $____.

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1) 215¢ is equal to $2.15

2) 120¢ is equal to $1.20

3) 80¢ is equal to $0.80

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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

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Are you ready to try out the questions?