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Goldy's Glide SignHint


  1. To make the sum large, put and in the ones place and put in the hundreds place.

    To make the sum small, put and in the ones place and put in the hundreds place.


  2. To get a sum between 500 and 600, put in the hundreds place.

    Try to arrange that the tens do not add to more than nine tens.

    To get a sum between 800 and 900, put in the hundreds place.

    Try to arrange that the tens do add to more than nine tens.


  3. Experiment. What do you notice about the possible sums?



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