Lesson 6
The Octal System
From eight to ten
Page 187
Your answer :
1(82) + 3(81) + 2(80) = 90.
You are correct.
1(82) + 3(81) + 2(80)
= 1(64) + 3(8) + 2(1)
= 64 + 24 + 2 = 90.
How about:
2(82) + 1(81) + 3(80)?
2(82) + 1(81) + 3(80) = 75.
2(82) + 1(81) + 3(80) = 160.
2(82) + 1(81) + 3(80) = 139.