Write down the value of the underlined digits in the following bases.
11012 b) 42315 c) 21456
2) Convert to base 10:
1112 b) 21023 c) 425
3) Convert 768 base 10 to :
Base 5 b) base 8. c) base 2
4) Add the following bases:
11012 + 1112 b) 76158 + 3748
c) 43145 + 2135
5) Subtract the following bases:
11012 - 1112 b) 43145 - 4235
c) 67148 - 6158
