what level of math did this problem come from? Would it make sense to you if I told you that the first sum could be expressed as ?
Hello, cdesiani!
Elementary school?
Perhaps very bright elementary students who have mastered Algebra
. . and know some clever (sneaky) tricks . . .
1) Find the value of: .
We note that: .
We have: .
. . . . . .
. . . . . .
2) Find the value of: .
We note that: .
We have: . . . . . .
. . . . .
. . . . .
. . . . .
By sixth grade I had mastered tying my shoelaces and finding my mittens.
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