1.3 Convert the following numbers with the indicated bases to decimal:
(a) (4310)₅ (b) (198)₁₂ (c) (435)₈ (d) (345)₆
(a) (4310)₅ = 4*5³+3*5²+1*5¹+0*5⁰
=4*125+ 3*25 +5+0
= 500+75+5
=(580)₁₀
(b) (198)₁₂ = 1*12²+9*12¹+8*12⁰
=144+ 9*12 + 8
= (260) ₁₀
(c) (435)₈ = 4*8²+3*8¹+5*8⁰
= 4*64 +3*8 + 5
= (285) ₁₀
(d) (345)₆ = 3*6²+4*6¹+5*6⁰
= 3*36+4*6+5
= (137) ₁₀.