Simplify ${{213}_{4}}\times {{23}_{4}}$

$\begin{align}  & {{4243}_{5}} \\ & \underline{13x{{4}_{5}}} \\ & \underline{y{{344}_{5}}} \\\end{align}$Find x and y respectively in the subtraction above carried out in base 5.

If 321₄ is divided by 23₄ and leaves a remainder r, what is the value of r ?

Convert 2232₄ to a number in base six

If $(k{{2}_{6}})\times 6={{3}_{5}}{{(k4)}_{5}}$ what is the value of k

If X₁₀ = 1214₅, find X

If 125_x = 20₁₀ find x

If 55_x +52_x =77₁₀, find x

If 2q3₅ = 77₈, find q

$\text{Convert 2}{{\text{7}}_{10}}\text{ to another number in base three}$

Simplify ${{23}_{4}}\times {{22}_{4}}$

If ${{x}_{10}}={{23}_{5}}$ find x

The operation below was carried out in base 2. Find the missing number.$\begin{align}  & **** \\ & +111 \\ & \underline{\text{  }110} \\ & \underline{10110} \\\end{align}$