Question: delay evaluation in add

How can i delay the evaluation in add. I want add to return

add( i, i=1..10)

                                    1+2+3+4+5+6+7+8+9+10

Now it returns

add(i, i=1..10)
                                    55

I have tried  add( `i`, i=1..10) and Sum(i, i=1..10) but that does not work ...humm

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