If you look at pictures, symbols,
or place-value blocks,
can you guess what the problem is?
 

 Look at the these pictures. 
 What problem do they represent?

 
                      
+
 

    If each = 1 fish,
     then this picture represents:

             7 + 8 = 15 fish

 Look at these symbols.
 What problem do they represent?

 ΔΔΔΔΔΔΔΔΔΔ - ΔΔΔΔ

    If each Δ = 1 ,
     then these symbols represent:

                10 - 4 = 6

 Look at these place-value blocks.
 What problem do they represent?

   + + +

     If each = 1 ,
     then these blocks represent:

          4 + 4 + 4 + 3 = 15

    Remember:

Pictures, symbols and place-value blocks
can represent math problems.

Click on the fish for practice.

 
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