Question

(6.72 x 10) - (2.01 x 10)

Answer 1

47.1

Explanation:

Solution Steps

(6.72⋅10)−(2.01⋅10)

Multiply 6.72 and 10 to get 67.2.

67.2−2.01×10

Multiply 2.01 and 10 to get 20.1.

67.2−20.1

Subtract 20.1 from 67.2 to get 47.1.

47.1

Answer 2

47.1

Explanation

Step 1

multiply the decimals

To multiply decimals, first multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor. Finally, put the same number of digits behind the decimal in the product.

Hence

`\begin{gathered} (6.72\cdot10) \\ 672\cdot10\text{ (2 places)} \\ 6720 \\ \text{now move 2 places to the left} \\ 67.20 \\ 67,2 \end{gathered}`

now, the rigth parenthesis

`\begin{gathered} (2.01\cdot10) \\ 201\cdot10\text{ (2 places)} \\ 2010 \\ \text{now 2 places to the left} \\ 20,10 \\ 20,1 \end{gathered}`

Step 2

make the subtraction

`\begin{gathered} (6.72\cdot10)-(2.01\cdot10) \\ 67.2-20.1 \\ 47.1 \end{gathered}`

so, the answer is 47.1

I hope this helsp you