Represent Addition and Subtraction in Various Forms: CCSS.Math.Content.K.OA.A.1 - Common Core: Kindergarten Math
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Add the triangles 
below.
Add the triangles below.
When we add we count up. We have 
triangle in the first box, and then 
triangles in the second box. In total we have 
triangles. If you start at 
on a number line and count up 
, you have 
.
When we add we count up. We have
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Add the triangles below.
Add the triangles below.
When we add we count up. We have 
triangles in the first box, and then 
triangles in the second box. In total we have 
triangles. If you start at 
on a number line and count up 
, you have 
.
When we add we count up. We have
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Use the triangles below to help you answer the subtraction problem.
Use the triangles below to help you answer the subtraction problem.
We have 
triangles and we want to subtract 
triangle, which means the same thing as take them away. We can cross off the 
triangle that we are subtracting, and count the number that we have left. In this case we have 
triangles left. Subtraction is like counting backwards. We can start at 
and count back 
.
We have
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