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.
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.
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.
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.
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.
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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Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.