Lesson 8
Octal Arithmetic
The sum gets a bonus
Page 274
You are correct. Since we are working in the octal system, that two-digit number we got was
118, which is equivalent to
910. What we have so far is
.2568
×
128
.5348
2.568
3.3148
×
128
.6308
3.148
3.7708
×
128
1.7608
7.708
11.6608
Now, carry the multiplication one step further so you know which way to round .339…10
Answer to Self-Test Question 6, Lesson 8 :