Place Value with decimals through millionths 1 Starting

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Place Value with decimals through millionths 1

Place Value with decimals through millionths 1

Starting with the ones place, let’s name the places together, in order, from ones

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 2

Starting at the decimal point, the places are named in the same order except:

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. 3

Practice (whole group…on screen) 1. http: //www. thatquiz. org/tq/practice. html? pl acevalue (orally—with volunteers)

Practice (whole group…on screen) 1. http: //www. thatquiz. org/tq/practice. html? pl acevalue (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…. 4

Practice Answers 2. Write each number in standard form. a) 83, 903 b) 98,

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. 5

How to read and write decimals: Write the following number in word form: 40.

How to read and write decimals: Write the following number in word form: 40. 318 Step 1: Write the word name for the #s to the left of or before the decimal point. forty Step 2 : Write and & the word name for the #s to the right of the decimal point. Step 3: Write the place value name of the final digit after the decimal point. forty and three hundred eighteen thousandths 6

Practice: try to write the following in word form. 1) 7. 4005 2) 0.

Practice: try to write the following in word form. 1) 7. 4005 2) 0. 28067 7

Check your answers Practice: try to write the following in word form. 1) 7.

Check your answers Practice: try to write the following in word form. 1) 7. 4005 seven and four thousand five ten thousandths 2) 0. 28067 twenty-eight thousand sixty-seven hundred thousandths 8

How would you write this # in word form? th h t o. t

How would you write this # in word form? th h t o. t 0 . 10 100 h th th th m 7 2 0 3 8 5 9

Seven hundred twenty thousand, three hundred eighty-five millionths th h t o. t 0

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

What place is the 4 in ? 0. 00548 th h t o. t

What place is the 4 in ? 0. 00548 th h t o. t 10 100 h th th th m . 11

What place is the 4 in ? 0. 00548 th h t o. t

What place is the 4 in ? 0. 00548 th h t o. t 0 . 10 100 h th th th m 0 0 5 4 8 12

What number is in the hundred thousandths place? 8. 097136 13

What number is in the hundred thousandths place? 8. 097136 13

What number is in the hundred thousandths place? 8. 097136 14

What number is in the hundred thousandths place? 8. 097136 14

Try to write the following number in standard form: Four and twenty-nine millionths **

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. 15

Four and twenty-nine millionths 4. 000029 the nine is in the millionths place 16

Four and twenty-nine millionths 4. 000029 the nine is in the millionths place 16

4. 000029 th h t o. t 4 . 10 100 h th th

4. 000029 th h t o. t 4 . 10 100 h th th th m 0 0 2 9 17

Now, try some more practice http: //www. thatquiz. org/tq/practice. html? placevalue Note to teacher:

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. 18