Change the representation of 1025 from base five to base ten.
1025 = 1 × 5102 + 0 × 5101 + 2 × 5100 = 2510 + 210 = 2710
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
Can 6827 be rewritten in base ten notation?