Chapter 3.4B, Problem 18A

Find the number to put in the blank to make each question true. Do not convert to base ten.

a. ${342}_{\text{five}}-\text{\_}\text{\_}\text{\_}\text{\_}\text{\_}={213}_{\text{five}}$

b. ${1101}_{\text{two}}-\text{\_}\text{\_}\text{\_}\text{\_}\text{\_}={1011}_{\text{two}}$

c. $E{08}_{\text{twelve}}-\text{\_}\text{\_}\text{\_}\text{\_}\text{\_}=9_{\text{twelve}}$

d. ${100}_{\text{two}}+\text{\_}\text{\_}\text{\_}\text{\_}\text{\_}\text{\_}={10000}_{\text{two}}$