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Thousands to Thousandths

Thousands to Thousandths. Unit 2 Lesson 2. Reading Decimals. Say what you see before the decimal Say “ and ” for the decimal Say what you see after the decimal Say the place value of the final digit To write in words, you write what you say. and. five hundred eighty. 5 8 0 . 3 2 4.

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Thousands to Thousandths

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  1. Thousands to Thousandths • Unit 2 Lesson 2

  2. Reading Decimals • Say what you see before the decimal • Say “and” for the decimal • Say what you see after the decimal • Say the place value of the final digit • To write in words, you write what you say

  3. and five hundred eighty 5 8 0.3 2 4 three hundred twenty-four thousandths

  4. Partner A 1 . 46 One and forty-six hundredths

  5. Partner B 67 . 401 sixty seven and four hundred one thousandths

  6. A. three and forty seven tenths B. Three and forty seven thousandths 3 . 47 C. three and forty seven hundredths D. Three and forty seven hundreds

  7. A. seventeen and eighty-two tenths B. seventeen and eighty-two hundredths 17 . 082 C. seventeen thousand eighty two D. seventeen and eighty-two thousandths

  8. th h t o . t h How would you write this # in word form? th 1 . 7 2 0 A zero at the end of a decimal number does not change the number’s value ,

  9. th h t o . t h One and seventy-two hundredths th 1 . 7 2 0 A zero at the end of a decimal number does not change the number’s value ,

  10. th h t o . t h What place is the 4 in ? 26.548 th . ,

  11. th h t o . t h What place is the 4 in ? 26.548 th hundredths 2 6 . 5 4 8 ,

  12. What number is in the thousandths place? 8.097

  13. What number is in the thousandths place? 8.097

  14. Write down the number that is not equivalent to the other values 2.6 2.06 2.600 2.60 4.07 4.070 4.70 4.0700

  15. Getting the Idea! When a number is written as the sum of the products of each digit and its place value, it is written in expanded form. Standard form: 36.82 Word form: thirty-six and eighty-two hundredths Expanded form: 30 + 6 + 0.8 + .02 You can use a place-value chart to write numbers in expanded form.

  16. Question: What is 71.85 written in expanded form? Strategy: Use a place-value chart. Place each digit in the place-value chart. Step 1: Step 2: Write the value of the digit in the greatest place. 7 tens equals 70 Step 3: Place an addition sign to the right of the number. Then write the value of the digit in the next greatest place. 70 + 1 70 tens plus 1 ones equals 71

  17. Step 4: Continue for the remaining numbers. 70 + 1 + 0.8 + 0.05 70 tens + 1 ones + 8 tenths + 5 hundredths = 71.85 Solution: The number 71.85 written in expanded form is: 70 + 1 + 0.8 + 0.05 or 70 + 1 + 8/10 + 5/100

  18. Question: What is 680.901 written in expanded form? Step 1: Place each digit in the place-value chart. Step 2: Write the value of the digit in the greatest place. Write an addition sign, and then write the value of the digit in the next greatest place. 600 + 80 + 0.9 + 0.001

  19. Question: What is the expanded form of 42.07? Thinking It Through: What is the value of each digit? There are ________ tens = ________. There are ________ ones = ________. There are ________ tenths = ________. There are ________ hundredths = ________. Solution: The expanded form of 42.07 is: _____________________

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