It is known as "double digit inflation". It is certainly NOT hyper.
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0.625493
9063
That is correct. Considering the largest double digit whole number is 99. Unless of course, you mean adding the two digits of a double digit number alongside the two digits of another double digit number, then yes, you will have a 4 digit number. Depends how you interpret the question, and your creativity.
It is known as "double digit inflation". It is certainly NOT hyper.
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Well its complicated to explain.
Mental math like if 12 into 72 it will not be a double digit if you divide 100 by 10 it will be double digits. Most times if you have a tripple digit number and divide it by double digit the answer will be a double digit.
0.625493
9063
A double digit number, triple digit number........
3 more than 5 is 8, so the tens digit is 8. The tens digit is,double the number of the ones digit, so divide 8 by 2 and you get 4. If you double 4 it is 8 so, the number is 84.
There is no such ratio that applies for all single-digit and double-digit integers.
60x2