1. (A10)₁₆ = (      ?      )₁₀

Solution:
`(A10)_16 = (underline{" "})_10`


`A10`

` = A × 16^2 + 1 × 16^1 + 0 × 16^0`

`= 10 × 256 + 1 × 16 + 0 × 1`

`= 2576`


`:. (A10)_16 = (underline{2576})_10`

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2. (BCA)₁₆ = (      ?      )₁₀

Solution:
`(BCA)_16 = (underline{" "})_10`


`BCA`

` = B × 16^2 + C × 16^1 + A × 16^0`

`= 11 × 256 + 12 × 16 + 10 × 1`

`= 3018`


`:. (BCA)_16 = (underline{3018})_10`

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