Operations & Algebraic Thinking

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MAP 2nd Grade Math › Operations & Algebraic Thinking

Questions 1 - 10

Zack ate pieces of chocolate at lunch and pieces of chocolate after dinner. How many pieces did he eat?

Explanation

This is an addition problem because we want to know how many total pieces of chocolate Zack ate all together. We can add or

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

Explanation

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

$\frac{\begin{array}[b]{r}20\ -\ 20\end{array}}{ \ \ \ \ \space 0}$

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

Explanation

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

$\frac{\begin{array}[b]{r}3\ +\ 16\end{array}}{ \ \ \space19}$

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

Explanation

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

$\frac{\begin{array}[b]{r}7\ -\ 6\end{array}}{ \ \ \ \space 1}$

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

Explanation

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

$\frac{\begin{array}[b]{r}7\ -\ 6\end{array}}{ \ \ \ \space 1}$

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

Explanation

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

$\frac{\begin{array}[b]{r}20\ -\ 20\end{array}}{ \ \ \ \ \space 0}$

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

Explanation

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

$\frac{\begin{array}[b]{r}3\ +\ 16\end{array}}{ \ \ \space19}$

Zack ate pieces of chocolate at lunch and pieces of chocolate after dinner. How many pieces did he eat?

Explanation

This is an addition problem because we want to know how many total pieces of chocolate Zack ate all together. We can add or

Zack ate pieces of chocolate at lunch and pieces of chocolate after dinner. How many pieces did he eat?

Explanation

This is an addition problem because we want to know how many total pieces of chocolate Zack ate all together. We can add or

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

Explanation

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

$\frac{\begin{array}[b]{r}4\ +\ 2\end{array}}{ \ \ \ \space6}$

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