Lesson · Grade 4 · Mathematics
Dollars and Cents: Writing Money with a Decimal Point
- Grade 4
- Mathematics
- 54 s
- British Columbia
- BC4-MA-28
Three 1 dollar coins and five cent coins, counted 10, 20, 30, 40, 45, make 3 dollars and 45 cents, and a dollar bar split into ten 10 cent parts shows that 45 cents is only part of a dollar. The amount is then written one piece at a time as $3.45 (dollar sign, dollars, decimal point, cents), read back to check it, and summed up as "Dollars before the point, cents after".
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In one sentence
The question this lesson answers
How do we write 3 dollars and 45 cents?
Three 1 dollar coins make 3 dollars.
Transcript
What the lesson says
How do we write 3 dollars and 45 cents?
Three 1 dollar coins make 3 dollars.
Now count the cents: 10, 20, 30, 40, 45 cents.
Remember, 100 cents make 1 dollar.
So 45 cents is only part of a dollar.
To write it, start with the dollar sign.
Then write the dollars, 3.
Next, put a decimal point.
After the point, write the cents, 45.
The decimal point separates the dollars from the cents.
Check it by reading it back: 3 dollars and 45 cents.
Dollars go before the decimal point, and cents go after it.
Curriculum
Where this fits
- British Columbia, Grade 4
Mathematics, Financial literacy: financial literacy: monetary calculations, including making change with amounts to 100 dollars and making simple financial decisionsBC4-MA-28
The outcomes and strands follow the British Columbia curriculum.
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