Place Value with decimals through millionths

1. Place Valuewith decimals through millionths

2. Monday, Aug. 16th ~ • Groundworks #1 (do together as class) • Groundworks #2 (let students do on own) • Show ppt slides 3 and 4 • Cut out place value chart and glue (w/ glue stick) in spiral & on the back of the page, glue diff ways to write #s chart. • Then proceed with ppt 5 and 6

3. Starting with the ones place, let’s name the places together, in order, from ones to millions: ones tens hundreds thousands ten thousands hundred thousands millions

4. Starting at the decimal point, • the places are named in the • same order except: • there is not a “ones” place • all names end in “ths” ones tens hundreds thousands ten thousands hundred thousands millions (.) decimal tenths hundredths thousandths ten thousandths hundred thousandths millionths Now add place value chart to spiral notebook, and add diff ways to read/write #s on another page.

5. Practice (whole group…on screen) 1.http://www.thatquiz.org/tq/practice.html?placevalue(orally—with volunteers) 2. Write each number in standard form. (on a sheet of paper) a) 83 thousand 903 b) (9 x 10,000) + (8 x 1,000) + (3 x 100) + (4 x 10) c) four hundred eighty-nine thousand, three hundred forty-one d) (5 x 100,000) + (3 x 1,000) + (7 x 10) e) 48 thousand 16 f) two hundred eight g) sixty-five billion, two million, fourteen thousand, three Answers to a-g are on the next slide….

6. Practice Answers 2. Write each number in standard form. a) 83,903 b) 98,340 c) 489,341 d) 503,070 e) 48,016 f) 208 g) 65,002,014,003 STOP here on Mon. 

7. Wednesday, Aug. 18th~ • Groundworks #4 (w/ a partner) • Compare answers w/a partner - WS “Athletes on Parade” • Teacher will “spot check” #s 7, 8, 10, 15, 21, and 22. • Continue on to the end of this ppt • Then, students will do WS- Read/Write Decimals and check it in class.

8. Students ~ • Use your place value chart (in your spiral notebook) to help you with today’s math problems.

9. How to read and write decimals: Write the following number in word form: 40.318 Step 2 : Write and & the word name for the #s to the right of the decimal point. forty and three hundred eighteen Step 3: Write the place value name of the final digit after the decimal point. forty and three hundred eighteen thousandths Step 1: Write the word name for the #s to the left of or before the decimal point. forty

10. Practice: try to write the following in word form. 1) 7.4005 2) 0.28067

11. Check your answers Practice: try to write the following in word form. 1) 7.4005 seven and four thousand five ten thousandths • 0.28067 twenty-eight thousand sixty-seven hundred thousandths

12. th h t o . t h How would you write this # in word form? 10 th 100 th th m 0 . 7 2 0 3 8 5 ,

13. th h t o . t h Seven hundred twenty thousand, three hundred eighty-five millionths 10 th 100 th th m 0 . 7 2 0 3 8 5 ,

14. th h t o . t h What place is the 4 in ? 0. 00548 10 th 100 th th m . ,

15. th h t o . t h What place is the 4 in ? 0. 00548 10 th 100 th th m 0 . 0 0 5 4 8 ,

16. What number is in the hundred thousandths place? 8.097136

17. What number is in the hundred thousandths place? 8.097136

18. Try to write the following number in standard form: Four and twenty-nine millionths ** Remember: when writing a decimal in standard form, start by placing the decimals in the correct place and then work backwards. Use your chart in your spiral notebook to help you write this number.

19. 4.000029the nine is in the millionths place Four and twenty-nine millionths

20. th h t o . t h 4.000029 10 th 100 th th m 4 . 0 0 0 0 2 9 ,

21. Now, try some more practice http://www.thatquiz.org/tq/practice.html?placevalue Note to teacher: Change the level to 6 and change the answers to just decimals. Have the students practice these questions out loud.