Add the following lengths

kg g

$36$ $429$

+$20$ $705$

$$\begin{gathered} \_\_\_\_\_\_\_\_\_ \\ \_\_\_\_\_\_\_\_\_ \end{gathered}$$

Add the following lengths

$\mathrm{km}$ $m$ $\mathrm{cm}$

$20$ $600$ $90$

$40$ $750$ $25$

+$55$ $800$ $19$

$$\begin{gathered} \_\_\_\_\_\_\_\_\_\_\_\_\_\_ \\ \_\_\_\_\_\_\_\_\_\_\_\_\_\_ \end{gathered}$$

Add the following lengths

cm mm

$80$ $02$

+$21$ $05$

$$\begin{gathered} \_\_\_\_\_\_\_\_\_ \\ \_\_\_\_\_\_\_\_\_ \end{gathered}$$

Add the following lengths:

$kmmcm$

$16$ $800$ $25$

+$25$ $200$ $80$

$$\begin{gathered} \_\_\_\_\_\_\_\_\_\_\_\_\_\_ \\ \_\_\_\_\_\_\_\_\_\_\_\_\_\_ \end{gathered}$$

Add the following:

$$\begin{gathered} ThHTO \\ 4551 \\ 3626 \\ +1152 \\ \_\_\_\_\_\_\_\_\_\_ \\ \_\_\_\_\_\_\_\_\_\_ \end{gathered}$$

Add:
$$\begin{gathered} 31458875 \\ 49873928 \\ +80394669 \\ \_\_\_\_\_\_\_\_\_\_\_ \end{gathered}$$