Operations

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1st Grade Math › Operations

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Solve:

$\frac{\begin{array}[b]{r}1\ +\ 19\end{array}}{ \ \ \space}$

CORRECT

To add we count up. Start at and count up .

$\frac{\begin{array}[b]{r}1\ +\ 19\end{array}}{ \ \ \ \ \space20}$

Solve:

$\frac{\begin{array}[b]{r}19\ -\ 3\end{array}}{ \ \ \ \space}$

CORRECT

To subtract we can count backwards. Start at and count back

$\frac{\begin{array}[b]{r}19\ -\ 3\end{array}}{ \ \ \space16}$