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Math 5 Read, write decimals to the thousandths

Math 5 Read, write decimals to the thousandths. Instructor: Mrs. Tew Turner. In this lesson you will learn about place value with decimals and the patterns that we find in the base 10 system. 1 Minute Math Warm-up! 17 + 12= 21 + 37= 36 + 23= 54 + 45= 13 + 9 = 29 + 11=

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Math 5 Read, write decimals to the thousandths

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  1. Math 5Read, write decimals to the thousandths Instructor: Mrs. Tew Turner

  2. In this lesson you will learn about place value with decimals and the patterns that we find in the base 10 system.

  3. 1 Minute Math Warm-up! 17 + 12= 21 + 37= 36 + 23= 54 + 45= 13 + 9 = 29 + 11= 64 + 18= 73 + 37= http://timer.onlineclock.net/

  4. Math Warm-up 17 + 12= 39 21 + 37= 58 36 + 23= 59 54 + 45= 99 13 + 9 = 22 29 + 11= 40 64 + 18= 82 73 + 37= 110

  5. Decimal place value is very similar to whole number place value. Every number has a place to hold.However, decimals are numbers LESS than ONE WHOLE number otherwise known as a FRACTION.

  6. All numbers that are decimals end with a “ths” to represent a number that is less than one or a fraction.

  7. Hundredths 1 Whole Tenths Thousandths

  8. Decimal numbers always represent LESS THAN ONE! “AND”: How you SAY the DECIMAL POINT.

  9. Let’s Practice reading decimal numbers! 1)1.982 You say, “One AND Nine hundred eighty two thousandths.”

  10. Let’s Practice reading decimal numbers! 2) 456.367 You say, “Four hundred fifty six AND three hundred sixty seven thousandths.”

  11. Let’s Practice reading decimal numbers! 3) 4,687.97 You say, “Four thousand, six hundred eighty seven and ninety seven hundredths.”

  12. Now lets work on recognizing and saying these numbers. Why are they less than one? 0.04 = Four Hundredths = this means you have 4 out of 100 items = 4/100 0.3 = Three Tenths = this means you have 3 out of 10 items = 3/10

  13. Make a chart like this in your notebook Draw The symbol for ONES, Tenths, Hundredths, & Thousandths.

  14. Let’s look at an example: Let’s read this number together.

  15. Now let’s PracticeWe will look at the number, say the number, then say the fraction. 0.45 Forty-five HUNDREDTHS 45/100 0.07 Seven HUNDREDTHS 7/100 0.9 Nine TENTHS 9/10

  16. 0.306 Three Hundred-six THOUSANDTHS 306/1000 Seven Hundred Ninety-one THOUSANDTHS 0.791 791/1000 Forty-one THOUSANDTHS 0.041 41/1000 Nine THOUSANDTHS 9/1000 0.009

  17. Quick Check Write each number in standard Form: 1) 60 + 0.6 + 0.03 + 0.007 + 8

  18. Quick Check Write each number in standard Form: 1) 60 + 0.6 + 0.03 + 0.007 + 8

  19. Quick Check Write each number in standard Form: 2) Four and sixty-eight hundredths

  20. Quick Check Write each number in standard Form: 2) Four and sixty-eight hundredths

  21. Quick Check Give the VALUE of the underlined digit: 3) 4.737

  22. Quick Check Give the VALUE of the underlined digit: 3) 4.737

  23. In your Math Notebook Explain how the number 3.453 has two 3’s. Why does each 3 have a different value?

  24. In your Math Notebook Explain how the number 3.453 has two 3’s. Why does each 3 have a different value?

  25. In your Math Notebook-guide Explain how the number 3.453 has two 3’s. Why does each 3 have a different value? The first 3 on the far left is a WHOLE number. The 3 on the far right represents the THOUSANDTHS place or a fraction: 3/1000:

  26. In your Math Notebook-guide Continued explanation: The models show the value of the digit 3 in each of the different places it appears in the number 3.453. Thousandths SOUND LARGE but they are only slivers of a whole number. They are VERY SMALL!

  27. Scooter Quest http://tinyurl.com/33xep6y

  28. Good Work with this lesson. Today you learned how toread and write decimals to the thousandths

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