Question

Leanne multiplied 8 times 4.3 and got 32.24. Is Leanne correct use an area model to explain your answer

Answer 1

No she is not correct the answer is 38.4

Answer 2

Leanne is not correct as she does not multiplied 8 times 4.3 correctly.

Further explanation:

Given:

It is given that Leanne multiplied 8 times 4.3 and she got 32.24.

Calculation:

$\boxed{\text{Multiplication}}$ is a mathematical operation such that two real numbers are performed in such a way that they derive a third number called product. The sign used for multiplying two numbers is $\times\text{ and }\cdot$.

For example:

Suppose there are two numbers 5 and 10. Now  multiply both the numbers as,

$5\times10=50$

Therefore, 50 is the product of 5 and 10.

There are two numbers with decimal 5.5 and 8. Now, multiply both the number as,

$5.5\times8=44$

 

Here we will not multiply each of the number 5.5 and 8 separately as shown,

$5.5\times8\ne40.40$

The above method is not a correct way of multiplication.

As Leanne multiplied 8 times 4.3, it means she multiplied the number 4.3  eight times. Hence, Leanne is not correct.

The correct method to multiply 4.3 eight times is,

$\begin{aligned}(4.3)\times(4.3)\times(4.3)\times(4.3)\times(4.3)\times(4.3)\times(4.3)\times(4.3)&=(4.3)^{8}\\&=116882.002\end{aligned}$

The value after multiplying 8 times 4.3 is 116882.002.

This means Leanne is not correct as she does not multiplied 8 times 4.3 correctly.

Learn more:

1. Problem on the whole numbers are positive integers brainly.com/question/1852063.

2. Problem on the adding and simplifying the numbers brainly.com/question/894273.

3. Problem on the general form of the equation of the circle brainly.com/question/1506955.

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Multiplication and division

Keywords:

Leanne, 4.3, 8, 34.4, 32.24, , multiplication, division, addition, subtraction, real numbers, decimal numbers.