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Question 1143973: Using the numbers 1,2,3,4 only once and the operations + or x as many times as you like, write an expression that evaluates to 16. Use this expression any combination of those symbols as many times as you like to write an expression that evaluates to 816.
Found 2 solutions by Alan3354, greenestamps:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Using the numbers 1,2,3,4 only once and the operations + or x as many times as you like, write an expression that evaluates to 16.
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4*4 = 16
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Use this expression any combination of those symbols as many times as you like to write an expression that evaluates to 816.
2*4*4*(2*4 + 4 + 1) = 816
Answer by greenestamps(13200)  (Show Source):
You can put this solution on YOUR website!
(1) The instructions are not completely clear.
For the first part, do you have to use EACH of the numbers 1, 2, 3, and 4 exactly once?
And the sentence describing the second part is not proper English, so we would have to guess its meaning.
(2) I very much dislike this kind of problem. Solving this kind of problem involves random guessing of how to put the numbers and operations together; random guessing teaches no useful problem-solving skills.
It does give you practice in evaluating expressions using correct order of operations; but those skills can be practiced with much more interesting problems.
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