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Change the representation of 1025 from base five to base ten.

Answer:

1025   =   1 × 5102 + 0 × 5101 + 2 × 5100   =   2510 + 210   =   2710


Base Seven

Here is another example: 3267. This means:

 3 × seven2 + 2 × seven1 + 6 × seven0

To write the number in decimal, write the powers of seven in decimal and perform the arithmetic:

3 ×  72 + 2 × 71 + 6 × 70 =

3 × 49  + 2 × 7 + 6 × 1 =

147 + 14 + 6    =    167

QUESTION 10:

Can   6827   be rewritten in base ten notation?


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