Welcome to Second Grade Math Parent Academy!!!. Check out these AMAZING resources!! Video Support: Video support can be found on The WCPSS Academics YouTube.

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Presentation transcript:

Welcome to Second Grade Math Parent Academy!!!

Check out these AMAZING resources!! Video Support: Video support can be found on The WCPSS Academics YouTube Channel. 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

Addition Strategies Learned in Class…

Show All Totals for Addition

Step 1: Add the Tens

Step 2:Add the Ones

Step 3: Find the Teen Total

Step 4: Find the Ones Total

Show All Totals…cont.

Expanded Method for Addition

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

Ungrouping Method for Subtraction

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

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.