1. MCC6.NS.3: Fluently add, subtract, multiply, and divide multi‐digit decimals using the standard algorithm for each operation.
EQ: Which strategies are helpful when performing operations on multi-digit decimals? Vocabulary: sum, difference, algorithm, subtrahend, minuend

2. Guided Practice 67.23+ 9.3 + 0.758= 67.23-9.3-0.758=
Estimate and explain your estimation
Now compute the exact answer
What is a method you can use when adding decimals that you can use with any two numbers? =
What is a method you can use when subtracting decimals that you can use with any two numbers?

3. Keywords or phrases for adding/subtracting
2. Altogether
3. Both
4. In all
5. Sum
6. Total
Subtracting
1. Difference
2. Fewer
3. How many more
4. How much more
5. Left
6. Less:
7. Minus
8. Need to
9. Remains
10. Subtract

4. Adding and Subtracting Decimals Algorithm
New Vocabulary
Sum- answer to an addition problem
Difference- answer to a subtraction problem
Minuend- the number that is to be subtracted from.
Subtrahend- the number that is to be subtracted
What are the steps?
Write the problem vertically, lining up the decimal points.
Add or subtract from right to left
Regroup if necessary.
Example 1
Shelia and Leslie hiked 8.76 kilometers in the morning and 4.29 kilometers in the afternoon. How many kilometers did they hike in all?
Example 2
A plumber has two metal pipes. The first pipe is 2.35 meters long. The second pipe is meters long. How much longer is the first pipe than the second pipe?
13.05
0.625

5. Which is the minuend and which is the subtrahend?
minuend
subtrahend
What is the difference?
57.93