5 Minute Math Review 1. .65 + .3= 2. .65 + .4= 3. .65 + .05= 4. Solve 2/5 x 1/6=

1. 5 Minute Math Review 1. .65 + .3= 2. .65 + .4= 3. .65 + .05= 4. Solve 2/5 x 1/6= 5. Order these decimals from greatest to least 2.48 0.41 1.36 0.7 0.1

2. Adding & Subtracting Decimals Objective: Today we will estimate sums and differences of decimal numbers, use representations to add tenths, hundredths, and thousandths through reasoning and representation.

3. Session 2.2 | Unit 6 Session 2.2 | Unit 6 Jeweler’s Gold Tap the first button to reveal the 
numbers. Tap the second button to reveal 
The Jeweler’s Gold problem. 1.14 0.3 0.085 Instructions The Jeweler’s Gold In your small groups, do the following: 1. Answer the question below. Everyone should agree on what the answer is. 2. Create a poster showing your answer, and explain how you added the numbers together. Janet is a jeweler. When she makes new jewelry or 
redesigns jewelry, she is often left with small pieces of 
gold. At the end of one day of work, Janet had pieces 
of gold that weighed 0.3 gram, 1.14 grams, and 0.085 gram. How much gold did Janet have left?

4. Let's Practice Adding Decimals: In your notebook please solve the following problems. ** Remember when adding decimals, make sure you line up the decimals.*** 1. 17.14 + 1.89 _____________ 2. 5 + 0.6 + 2.58 _____________ 3. 0.45 + 0.8 _____________ 4. 259.25 + 7,893.2 _____________

5. Subtracting Decimals: - It's the process is the same as adding, but you need to subtract. - Representation Example Ex. .75 -.32= - Line up the decimals example Ex. .75 - .32=

6. Let's Practice Subtracting Decimals: In your notebook find the difference for each problem and show your work clearly. 1. .89 - .04= 2. 5.47 - 2.31= 3. 1.42 - .91= 4. .841 - .493= 5. 29.478 - 3.74=