5374eight + 615eight

Find each sum in the same base as the given numerals. Question: 323four + 212four Question: 5374eight + 615eight

323four + 212four = 

3+2 -> 11four (so carry1 keep 1) and leads to

1+2+1 ->10four (so carry 1 keep 0) and leads to

1+3+2 -> 12four 

putting them together: 1201four 

using same strategy: 

5374eight + 615eight = 1354eight

how do i solve 374+526 using the 8 base number systems?

adding the first digits we get
1's place: 4+6 which is 12 in base 8 so we carry the 1 and keep the 2
for 8's place: 7+2+1 which again is 12 in base 8
for 64's place: 3+5+1 which is 11 in base 8
so our number is:
1122 in base 8

:)

Arithmetic in different bases

Solution:
Base-6 has 6 digits: 0,1,2,3,4,5. So 4+3 in base 6 is 11. So when we get to the 5+1 in the middle column we note that in bas 6 the sum is 10 which gives another carry.

For the second problem its handy to have a 5's multiplication table - for example in base 5: 3x4=22, 3x2=11, 2x4=13. Then we can add appropriately.