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Decimals

Decimals. Let’s Get To The Point!. Decimals. Decimals are based on a whole being split into ten equal parts one or more times. Decimals are numbers that are expressed using a decimal point. The U.S. monetary system is based on the decimal system. Wait a second….

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Decimals

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  1. Decimals Let’s Get To The Point!

  2. Decimals • Decimals are based on a whole being split into ten equal parts one or more times. • Decimals are numbers that are expressed using a decimal point. • The U.S. monetary system is based on the decimal system.

  3. Wait a second… • The U.S. monetary system is based on the decimal system. • That means… If I know money, I already know decimals!

  4. How much does a soda cost?

  5. How much does a soda cost? • 5 Dimes • 50 Pennies • 50 Cents • $.50 (Hey, that’s a decimal!)

  6. What does Fifty-Cent look like?

  7. What does Fifty-Cent look like? Not Quite… Wrong guy and wrong thing to define. I want to know what $.50 looks like.

  8. What does $.50 look like? 50 Pennies, .50, 50/100 5 Dimes, .5, 5/10,

  9. What does $.47 look like? 47 Pennies, .47, 47/100 Oops…Not quite 5 dimes

  10. What does $.82 look like? 82 Pennies, .82, 82/100 A little more than 8 dimes

  11. Learning Place Values • We can extend the whole number place value chart to include decimal values. • The decimal point is read as and. • The place right after the decimal point is in the tenths spot, then hundredths, then thousands…

  12. 98.7654 9 is in the tens place 8 is in the

  13. 98.7654 9 is in the tens place 8 is in the ones place Decimal 7 is in the

  14. 98.7654 9 is in the tens place 8 is in the ones place Decimal 7 is in the tenths place 6 is in the

  15. 98.7654 9 is in the tens place 8 is in the ones place Decimal 7 is in the tenths place 6 is in the hundredths place 5 is in the

  16. 98.7654 9 is in the tens place 8 is in the ones place Decimal 7 is in the tenths place 6 is in the hundredths place 5 is in the thousandths place 4 is in the

  17. 98.7654 9 is in the tens place 8 is in the ones place Decimal 7 is in the tenths place 6 is in the hundredths place 5 is in the thousandths place 4 is in the ten-thousands place

  18. How would I say 67.34?

  19. How would I say 67.34? Sixty-seven

  20. How would I say 67.34? Sixty-seven AND

  21. How would I say 67.34? Sixty-seven AND thirty-four

  22. How would I say 67.34? Sixty-seven AND thirty-four hundredths

  23. How would I say 213.972?

  24. How would I say 213.972? Two hundred thirteen

  25. How would I say 213.972? Two hundred thirteen AND

  26. How would I say 213.972? Two hundred thirteen AND nine hundred seventy-two

  27. How would I say 213.972? Two hundred thirteen AND nine hundred seventy-two thousandths

  28. How would I say 98.7654?

  29. How would I say 98.7654? Ninety Eight

  30. How would I say 98.7654? Ninety Eight AND

  31. How would I say 98.7654? Ninety Eight AND seven thousand six hundred fifty-four

  32. How would I say 98.7654? Ninety Eight AND seven thousand six hundred fifty-four ten-thousandths

  33. What have I learned today? • What is a decimal? • Decimal Place Values • Read Decimals

  34. You are now a Decimal Champion!

  35. Now the Good Part…Applying what you have learned. Pages 60-61 Numbers 1-18

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