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DECIMALS AND MONEY
GRADE 3

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Hello, How are you doing?
Today, we are going to start a new lesson on Decimals.

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Mixed Numbers
A number that has a whole number part and a fraction part is called mixed number.
Example – 3¼ means 3 whole numbers and ¼ fraction part.

4. Model of 1½ Or one dollar and 50 cents

5. Which is greater? Two dollars one cent or Two dollars and one dime
Answer –Two dollars and one dime

6. Write the money in decimals
Nine dollars and eight cents – 9.08
Twenty five dollars and fifty six cents – 25.56

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The family has a lunch in Cafeteria. Lunches costs $3.56 and drinks are $0.55. How much did they pay in all?
$4.11 OR 4 dollars and 11 cents

8. Which is greater? 2 dollars thirty cents 2 dollars thirty five cents
Two dollars thirty cents

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Place value chart for $3.20
Ones .
Tenths
Hundredths 3 2

10. Let us practice some more questions!

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It costs 20¢ to post a letter. How much money does it costs to send 2 letters?
Answers - 40¢

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1 dollar is equal to ---
10 tenths
10 hundredths
1 hundredth
1 tenth

13. 2 one dollars and 15 pennies amounts to ---
$2.15
$2.50
$2.05
$2.10

14. Complete the skip-counting pattern
3.21, 3.2*, 3.2*, 3.24, 3.25, 3.2*
Answer – 3.21, 3.22, 3.23, 3.24, 3.25, 3.26

15. Stan has spend $2.6 on food. Write this amount in decimal numbers.
Answer- Two dollars and sixty cents

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ASSESSMENT

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1. How much money is 5.24?
Answer – 5 dollars and 24 cents

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2. Pedro bought a Pineapple Juice for $3.29 and a strawberry shake for $3.05. How much change did he get from a ten-dollar bill?
Answer- $3.66

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3. David spend $2.05 on food and $2.50 on snacks. On what did he spend more?
Answer - Snacks

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4. Rachel paid 5 dollars, 2 dimes and 3 cents for a book. How much money did he pay to the cashier?
Answer- $5.23

21. 5. 50 cents = ---- tenths of a dollar
Answer - 5

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6. $0.60 has ---- dimes 5 6 8 3

23. 7. How much does 3 dollars and 2 cents amounts to?
Answer - $3.02

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8. Nora’s raft costs $7.56. How much change should she receive from a ten-dollar bill?
Answer - $2.44

25. Write the money in decreasing order. $2.36, $3.26, $2.30, $3.25
Answer- $3.26>$3.25>$2.36>$2.30

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10. Write $1.20 in words.
Answer – one dollar and twenty pennies

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Recap
Mixed Numbers
Model for Money
Place value for money
Writing money in decimal
Solved examples
Practice problems

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Well Done!
Now Practice worksheets on the Lesson.