Question

what is the value of \[1.2\centerdot 0.6\]?

Answer 1

Hint: From the given question we have been asked to simplify the expression \[1.2\centerdot 0.6\]. To solve this question we will first convert the decimal numbers into integers and next use the multiplication operation in basic mathematical operations and we will solve the given question and find the answer. So we proceed with our solution as follows.

Complete step by step solution:
The decimal number \[1.2\] has one digit after point.
The decimal number \[0.6\] also has only one digit after the point.
Now we will convert the decimals into integers by using the basic mathematical operations like multiplication.
We will multiply these numbers with \[10\]. So, we get the terms as follows.
\[\Rightarrow 1.2\times 10=12\]
\[\Rightarrow 0.6\times 10=6\]
When we have converted them to the non digital numbers we can multiply them easily.
\[\Rightarrow 12\times 6=72\]
Now, we should come to the start, that is we should divide the \[12\times 6=72\] as we earlier multiplied them with the integer ten. Since both of them are multiplied by ten, now the result should be divided by \[100\] in order to obtain a correct number of digits.
\[\Rightarrow \dfrac{72}{100}=0.72\]

Note: Students must be very careful in doing the calculations. Students should not forget that at the end we must divide the \[\Rightarrow 12\times 6=72\] with \[100\]. If we won't divide it then our solution will become wrong.