MAT 243 Online Written Homework
Assignments for Week 9/15
1.
Convert 41346 to hexadecimal using repeated application of the division algorithm.
Show all your steps.
.

2.
Carry out the hexadecimal addition FFAC + 31A1 using the pencil and paper method of
addition. DO NOT convert the hex numbers to decimal, carry out the addition in decimal
and then re-convert to hex.

3.
Carry out the binary multiplication 10000011 x 1001
efficiently
using the pencil and
paper method of multiplication. Show all work. DO NOT convert the binary numbers to
decimal.

4.
This problem continues our investigation of the memory pattern of hi-res graphics
storage in the Commodore 64 computer from the previous week.
We have already
learned that the 320 x 200 pixel display is subdivided into cells of 8x8 pixels each and
how to convert (x,y) pixel coordinates into (p,q) cell coordinates,
consecutive cell
numbers c and the relative pixel coordinates (a,b) within each cell.

©2018 R. Boerner ASU School of Mathematical and Statistical Sciences

©2018 R. Boerner ASU School of Mathematical and Statistical Sciences