Lesson 6
The Octal System
From eight to ten
Page 194
Your answer :
778
= 6310
3338
= 21910
5378
= 35110
6008
= 38410
⎫⎪⎪⎬⎪⎪⎭ This group contains a mistake.
Well, let’s check by writing the octal numbers in expanded form:
778
= 7(81) + 7(80)
= 7(8) + 7(1) = 6310;
3338
= 3(82) + 3(81) + 3(80)
= 3(64) + 3(8) + 3(1) = 21910;
5378
= 5(82) + 3(81) + 7(80)
= 5(64) + 3(8) + 7(1) = 35110;
6008
= 6(82) + 0(81) + 0(80)
= 6(64) + 0(8) + 0(1) = 38410.
They’re all correct. Return to Page 182 and try again.
