How to multiply

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ISEE Lower Level Quantitative Reasoning › How to multiply

Questions 1 - 10

Find the product.

$-7\times -11$

Explanation

When multiplying two negative numbers, the product will be positive. The correct answer is 77.

$\frac{\begin{array}[b]{r}10\ \times 7\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$10\times7$ means adding ten times.

and $10\times7=70$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 19 at 11.47.40 am

$\frac{\begin{array}[b]{r}1\ \times 12\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$1\times12$ means adding one time.

and $1\times12=12$

Or we can think of this as grouping objects. We have group, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 18 at 8.49.33 pm

$\frac{\begin{array}[b]{r}2\ \times 2\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$2\times2$ means adding two times.

and $2\times2=4$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 17 at 8.45.38 pm

$\frac{\begin{array}[b]{r}9\ \times 8\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$9\times8$ means adding nine times.

and $9\times8=72$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 18 at 9.41.38 pm

$\frac{\begin{array}[b]{r}10\ \times 2\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$10\times2$ means adding ten times.

and $10\times2=20$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 09 03 at 12.13.26 pm

$\frac{\begin{array}[b]{r}5\ \times 2\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$5\times2$ means adding five times.

and $5\times2=10$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 18 at 4.43.51 pm

$\frac{\begin{array}[b]{r}3\ \times 6\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$3\times6$ means adding three times.

and $3\times6=18$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 17 at 9.00.58 pm

$\frac{\begin{array}[b]{r}8\ \times 8\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$8\times8$ means adding eight times.

and $8\times8=64$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 18 at 3.50.01 pm

$\frac{\begin{array}[b]{r}5\ \times 12\end{array}}{ \ \ \ \space}$

Explanation

Multiplication can be thought of as repeated addition, or as objects in a group.

$5\times12$ means adding five times.

and $5\times12=60$

Or we can think of this as grouping objects. We have groups, with objects in each group. We can count up the total number of objects, in this case triangles.

Screen shot 2015 08 18 at 2.49.09 pm

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