Mentally Add and Subtract Within 20: CCSS.Math.Content.2.OA.B.2

Practice Questions

Common Core: 2nd Grade Math › Mentally Add and Subtract Within 20: CCSS.Math.Content.2.OA.B.2

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1

$\frac{\begin{array}[b]{r}3\ +\ 16\end{array}}{ \ \ \space?}$

2

$\frac{\begin{array}[b]{r}7\ -\ 6\end{array}}{ \ \ \ \ \space ?}$

3

$\frac{\begin{array}[b]{r}20\ -\ 20\end{array}}{ \ \ \ \ \space ?}$

4

$\frac{\begin{array}[b]{r}6\ -\ 6\end{array}}{ \ \ \ \space ?}$

5

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

6

$\frac{\begin{array}[b]{r}9\ -\ 6\end{array}}{ \ \ \ \space ?}$

7

$\frac{\begin{array}[b]{r}19\ -\ 8\end{array}}{ \ \ \ \space ?}$

8

$\frac{\begin{array}[b]{r}4\ +\ 2\end{array}}{ \ \ \space?}$

9

$\frac{\begin{array}[b]{r}4\ +\ 14\end{array}}{ \ \ \space?}$

10

$\frac{\begin{array}[b]{r}19\ -\ 2\end{array}}{ \ \ \ \space?}$

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