Split Strategy for addition

Review of EXPANDED FORM

56 = 50 + 6

137 = 100 + 30 + 7

4286 = 4,000 + 200 + 80 + 6

How will this help us with addition?

ThinkingSmiley

Let’s look at the Split Strategy. (http://vimeo.com/38554590)


        36 + 52 = ?

30 + 50 = 80                 6 + 2 = 8

  80 + 8 = 88

Ta-da!

Do you think you can do this? Let’s see!

You will need a white board and a white board marker.

Use the Split Strategy to add these numbers.

1. 43 + 34 =

2. 62 + 27 =

3. 51 + 38 =

NOW TRY THIS ONE

46 + 26 = ?

What do you do now?!

bth_clap1

 

 

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