Vertical Subtraction: Simple 2-digit subtraction

$\begin{aligned} &37 \\ -& \\ &25 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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$\begin{aligned} &49 \\ -& \\ &31 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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$\begin{aligned} &25 \\ -& \\ &24 \\ &\underline{\phantom{776}} & \\ \end{aligned}$$$

1

$\begin{aligned} &74 \\ -& \\ &72 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

2

$\begin{aligned} &19 \\ -& \\ &17 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

2

$\begin{aligned} &97 \\ -& \\ &63 \\ &\underline{\phantom{776}} & \\ \end{aligned}$$$

34

$\begin{aligned} &57 \\ -& \\ &23 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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$\begin{aligned} &91 \\ -& \\ &90 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

1

$\begin{aligned} &85 \\ -& \\ &81 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

4

$\begin{aligned} &67 \\ -& \\ &54 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

13