Question

What is 2.1 times 3.2 find the missing partial products HELP.​

Answer 1

Given:

The area model for $2.1\times 3.2$.

To find:

The value of $2.1\times 3.2$ and the missing values in the area model.

Solution:

2.1 can be written as 2 and 0.1 on the left side of the area model.

3.2 can be written as 3 and 0.2 on the top of area model.

Area of the four parts of the area model are:

$2\times 3=6$

$2\times 0.2=0.4$

$0.1\times 3=0.3$

$0.1\times 0.2=0.02$

The complete area model is shown below.

After adding all areas of the area model, we get

$6+0.4+0.3+0.02=6.72$

Therefore, the value of $2.1\times 3.2$ is 6.72 and the missing values of the area model are 0.3 and 0.02 respectively.