1. Welcome to Second Grade Math Parent Academy!!!

2. Check out these AMAZING resources!! Video Support: Video support can be found on The WCPSS Academics YouTube Channel. http://tinyurl.com/WCPSSAcademicsYouTube ES 2 Math Place value strategy for 2-digit addition ES 2 Math Decomposing a number to make a ten for 2–digit addition ES 2 Math 2-digit addition using a number line ES 2 Math 2-digit addition using a hundreds board ES 2 Math Expanded method for 2-digit addition ES 2 Math Show all totals method for 2-digit addition ES 2 Math Place value strategy for 2-digit subtraction ES 2 Math 2-digit subtraction using a number line ES 2 Math 2-digit subtraction using a hundreds board ES 2 Math Expanded method for 2-digit subtraction

3. Addition Strategies Learned in Class…

4. Show All Totals for Addition

5. Step 1: Add the Tens

6. Step 2:Add the Ones

7. Step 3: Find the Teen Total

8. Step 4: Find the Ones Total

9. Show All Totals…cont.

10. Expanded Method for Addition

11. Write each addend in Expanded Form (stretch the numbers out using an equation) Add the hundreds together Add the tens together Add the ones together Add all the sums together to get the final answer

12. Ungrouping Method for Subtraction

13. Write the equation. Determine if you have enough ones and tens to subtract. If you do not have enough ones to solve your subtraction problem, break apart both numbers into tens and ones (similar to expanded method for addition). Look at the tens column. Cross out your largest ten and take away ten from that number

14. Ungrouping Method for Subtraction…cont. Transfer the ten to the ones and add ten ones. This should create a new group of tens and ones that you should be able to accurately subtract now. Add back up your new tens and ones to get your answer.