Warm Up In the book on page 118 #5-8

Lesson 3.1 Decimals and Place Value Goal: The learner will identify place value in decimal numbers.

What’s a decimal and how is it different from a digit? A digit is any of the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. A decimal is a number in which each place value is ten times the place value to its right. How many ones does it take to make a ten? How many tens does it take to make a hundred?

Decimals and Place Value Millions Hundred thousands Ten thousands Thousands Hundreds Tens Ones Tenths Hundredths Thousandths Ten-thousandths Hundred-thousandths millionths 3. 1 2 Word Form: three and twelve hundredths Decimal Form: 3.12 Expanded Form: 3 ones + 1 tenth + 2 hundredths 3.0 + 0.1 + 0.02

Write 15.562 in word form. The word and tells where the decimal point is. Write two hundred seventy-eight ten-thousandths in decimal form.

Example: A person timing your swim meet says your time was twenty-eight and six tenths seconds. Write you time as a decimal. Buddy Rice won the 2004 Indianapolis 500. His best leading lap time was 41.6913 seconds. Write his time in words.

You Try It! Write twenty-five and seven hundred-thousandths as a decimal. Write 5.029 in words. Animated Math

Explain how to write a number written in words as a decimal Explain how to write a number written in words as a decimal. Use an example to illustrate your explanation. P.121 #9, 11, 13, 15, 21, 24, 33, 35, 39