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 Sujet: base 10
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 211(base x)=152(base 8) 2014-09-09 Vaidehi pose la question :Find the base value (i.e. x): 211(base x)=152(base 8)Penny Nom lui répond. Expanded exponential form? 2012-06-12 Ramon pose la question :express the numbers 990 614 000 005 in expanded exponential form.Harley Weston lui répond. Converting from base 4 to base 10 2011-11-29 anjg pose la question :How to convert base 4 number 2^11 to base 10 number?Penny Nom lui répond. Expanded form 2011-10-12 Chris pose la question :Write this number in expanded form 4 326 180 501 Thanks!!!Penny Nom lui répond. Bases larger than ten 2009-12-14 Nick pose la question :For numbers in bases larger than ten, what are the digits by mathematicians' conventions? I assume the first 10 are always 0-9. I know two computer science conventions (for hexadecimal (A-F case-insensitively) and for base 85 (case-sensitivity plus 23 other characters)) and as a school student I learned that base 12 uses either T and E (which confused me when I thought they stood for Eleven and Twelve) or A and B, the latter as capitals only. Clearly, these conventions are in conflict. I saw your reply in http://mathcentral.uregina.ca/QQ/database/QQ.09.99/magin1.html as accessed a few minutes ago but hope that in the 10 years since then mathematicians have arrived at a convention. Have they? Thank you. -- NickClaude Tardif lui répond. Aboriginal number groupings 2008-09-04 Barbara pose la question :Our current place value system is based on the notion of 10s. Did Aborginal people use a similar system or did they group numbers differently?Harley Weston lui répond. Base 10 to base 5 2007-10-09 Angela pose la question :I've been searching online for the past week and I cannot find an Algorithm to convert from base 10 to base 5. Can anyone give me a step-by-step instruction on how to do this?Stephen La Rocque lui répond. Converting from base 10 to base 5 2003-09-10 Susy pose la question : My son, who is 9 in grade 5 has been asked to convert base 10 numerals into base 5. His first question of: 24(10) he has calculated to be 4x5 + 4x1 = 44 (5) The next question however is the tricky one.Ý We know the answer is supposed to be 100 but we find it difficult to get this in the way he understands it. 25 (10) = _________________ 100 (5) Can you help us figure out how we reach the answer. Claude Tardif and Penny Nom lui répond. Converting to base 10 2003-08-28 Karen pose la question :My son is in 5th grade.Ý He is learning how to convert numbers from base 2 to base 10, and base 5 to base 10.Ý Can you explain it to me in the simplest terms?Penny Nom lui répond. Place Value 1999-01-05 Reg pose la question :I work in a Section 27 classroom with various grades. I am looking for assistance on how to deliver a lesson on place value:decimal numbers keeping in mind that they need to see it (visual) to comprehend. I am looking for grade 4-6 level.Jack LeSage lui répond.

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