Presentation on theme: "NYS Math Module 1 Lesson 9 Objective: Add decimals using place value strategies and relate those strategies to a written method. 5.NBT.4 Round to different."— Presentation transcript:
NYS Math Module 1 Lesson 9 Objective: Add decimals using place value strategies and relate those strategies to a written method. 5.NBT.4 Round to different place values 5.NBT.1 Decompose the unit 5.NBT.7 Adding decimals
Sprint ****8 minutes**** Ready, Set GO! !
Decomposing the Unit! Think about money. How many dimes are there?
Write down 35 hundredths, then add 1 tenth
Remember to write the number first.
Lets add 2 tenths plus 6 tenths using our place value charts. 8 tenths Write the addition sentence on your board. 2 tenths + 6 tenths = 8 tenths How is this problem the same as a whole number addition problem? Turn to your partner and share.
Work with your partner to solve the next two problems on your place value chart. 2 ones 3 thousandths + 6 ones 1 thousandth 2 tenths 3 thousandths + 6 hundredths = Lets write it vertically!
tenths Lets look at the following problem: How would you write 13 tenths? Write it on your white board. 13 tenths = 1.3 Solve: tenths 3.1 Draw a picture to represent 13 tenths. You may use your place value chart. Share with your partner
Another way to add and subtract decimals. Tip #1 - ALWAYS line up the decimal! This means the decimals are one on top of another Lets write it vertically! Tip #2 – Add ZEROS in all the empty spaces. Lets give it a try.
Try solving the last two problems
Clip art from Colleen Alaniz- Totally Terrific in Texas Thank you for downloading this presentation.. Laura Strickland Backgrounds, clip art, and font by:. The following pages are from NYS Math Modules. I minimized the images to reduce the paper waste and thought they may be helpful to others as well. For the entire module visit: mathematics-module-2http://www.engageny.org/resource/grade-5- mathematics-module-2